diff --git a/docs/2016-01-21/datacite.html b/docs/2016-01-21/datacite.html
index c3115b3..0ab6970 100644
--- a/docs/2016-01-21/datacite.html
+++ b/docs/2016-01-21/datacite.html
@@ -20,7 +20,7 @@
 
 **License:** [Creative Commons Attribution 4.0 International](https://creativecommons.org/licenses/by/4.0/legalcode)
 
-**Website:** http://www.sparontologies.net/ontologies/datacite</span><div id="toc"><h2>Table of Content</h2><ol><li><a href="#introduction">Introduction</a></li><li><a href="#classes">Classes</a></li><li><a href="#objectproperties">Object Properties</a></li><li><a href="#namedindividuals">Named Individuals</a></li><li><a href="#annotationproperties">Annotation Properties</a></li><li><a href="#generalaxioms">General Axioms</a></li><li><a href="#namespacedeclarations">Namespace Declarations</a></li></ol></div><h2 id="introduction">Introduction</h2><span class="markdown">The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  
+**Website:** http://www.sparontologies.net/ontologies/datacite</span><div id="toc"><h2>Table of Content</h2><ol><li><a href="#introduction">Introduction</a></li><li><a href="#classes">Classes</a></li><li><a href="#objectproperties">Object Properties</a></li><li><a href="#namedindividuals">Named Individuals</a></li><li><a href="#annotationproperties">Annotation Properties</a></li><li><a href="#generalaxioms">General Axioms</a></li><li><a href="#namespacedeclarations">Namespace Declarations</a></li></ol></div><h2 id="introduction">Introduction</h2><span class="markdown">The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  
 
 This version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF.</span><p class="image"><object data="datacite.png" type="image/png"></object></p><div id="classes"><h2>Classes</h2><ul class="hlist"><li><a href="#d4e279" title="http://purl.org/spar/datacite/AgentIdentifier">agent identifier</a></li><li><a href="#d4e304" title="http://purl.org/spar/datacite/AgentIndetifierScheme">agent identifier scheme</a></li><li><a href="#d4e334" title="http://purl.org/spar/datacite/AlternateResourceIdentifier">alternate resource identifier</a></li><li><a href="#d4e349" title="http://purl.org/spar/datacite/DescriptionType">description type</a></li><li><a href="#d4e362" title="http://purl.org/spar/datacite/FunderIdentifier">funder identifier</a></li><li><a href="#d4e386" title="http://purl.org/spar/datacite/FunderIdentifierScheme">funder identifier scheme</a></li><li><a href="#d4e415" title="http://purl.org/spar/datacite/Identifier">identifier</a></li><li><a href="#d4e458" title="http://purl.org/spar/datacite/IdentifierScheme">identifier scheme</a></li><li><a href="#d4e470" title="http://purl.org/spar/datacite/MetadataScheme">metadata scheme</a></li><li><a href="#d4e485" title="http://purl.org/spar/datacite/OrganizationIdentifier">organization identifier</a></li><li><a href="#d4e508" title="http://purl.org/spar/datacite/OrganizationIdentifierScheme">organization identifier scheme</a></li><li><a href="#d4e538" title="http://purl.org/spar/datacite/PersonalIdentifier">personal identifier</a></li><li><a href="#d4e561" title="http://purl.org/spar/datacite/PersonalIdentifierScheme">personal identifier scheme</a></li><li><a href="#d4e590" title="http://purl.org/spar/datacite/PrimaryResourceIdentifier">primary resource identifier</a></li><li><a href="#d4e614" title="http://purl.org/spar/datacite/ResourceIdentifier">resource identifier</a></li><li><a href="#d4e637" title="http://purl.org/spar/datacite/ResourceIdentifierScheme">resource identifier scheme</a></li></ul><div id="d4e279" class="entity"><a name="http://purl.org/spar/datacite/AgentIdentifier"></a><h3>agent identifier<sup title="class" class="type-c">c</sup><span class="backlink"> back to <a href="#toc">ToC</a> or <a href="#classes">Class ToC</a></span></h3><p><strong>IRI:</strong> http://purl.org/spar/datacite/AgentIdentifier</p><div class="comment"><span class="markdown">An identifier that uniquely identities an individual agent, belonging to a particular identifier scheme specified by an individual within the class datacite:AgentIdentifierScheme (or any of its subclasses).</span></div><dl class="description"><dt>has super-classes</dt><dd><a href="#d4e415" title="http://purl.org/spar/datacite/Identifier">identifier</a><sup title="class" class="type-c">c</sup></dd><dd><a href="#d4e238" title="http://purl.org/spar/datacite/usesIdentifierScheme">uses identifier scheme</a><sup title="object property" class="type-op">op</sup> <span class="logic">only</span> <a href="#d4e279" title="http://purl.org/spar/datacite/AgentIdentifier">agent identifier</a><sup title="class" class="type-c">c</sup></dd><dt>has sub-classes</dt><dd><a href="#d4e362" title="http://purl.org/spar/datacite/FunderIdentifier">funder identifier</a><sup title="class" class="type-c">c</sup>, <a href="#d4e485" title="http://purl.org/spar/datacite/OrganizationIdentifier">organization identifier</a><sup title="class" class="type-c">c</sup>, <a href="#d4e538" title="http://purl.org/spar/datacite/PersonalIdentifier">personal identifier</a><sup title="class" class="type-c">c</sup></dd><dt>is disjoint with</dt><dd><a href="#d4e614" title="http://purl.org/spar/datacite/ResourceIdentifier">resource identifier</a><sup title="class" class="type-c">c</sup></dd></dl></div><div id="d4e304" class="entity"><a name="http://purl.org/spar/datacite/AgentIndetifierScheme"></a><h3>agent identifier scheme<sup title="class" class="type-c">c</sup><span class="backlink"> back to <a href="#toc">ToC</a> or <a href="#classes">Class ToC</a></span></h3><p><strong>IRI:</strong> http://purl.org/spar/datacite/AgentIndetifierScheme</p><div class="comment"><span class="markdown">The identifier scheme used to identify an agent. Individual schemes are defines as members of its sub-classes.</span></div><dl class="description"><dt>has super-classes</dt><dd><a href="#d4e458" title="http://purl.org/spar/datacite/IdentifierScheme">identifier scheme</a><sup title="class" class="type-c">c</sup></dd><dd><span class="logic">inverse</span> <a href="#d4e238" title="http://purl.org/spar/datacite/usesIdentifierScheme">uses identifier scheme</a><sup title="object property" class="type-op">op</sup> <span class="logic">some</span> <a href="#d4e279" title="http://purl.org/spar/datacite/AgentIdentifier">agent identifier</a><sup title="class" class="type-c">c</sup></dd><dt>has sub-classes</dt><dd><a href="#d4e386" title="http://purl.org/spar/datacite/FunderIdentifierScheme">funder identifier scheme</a><sup title="class" class="type-c">c</sup>, <a href="#d4e508" title="http://purl.org/spar/datacite/OrganizationIdentifierScheme">organization identifier scheme</a><sup title="class" class="type-c">c</sup>, <a href="#d4e561" title="http://purl.org/spar/datacite/PersonalIdentifierScheme">personal identifier scheme</a><sup title="class" class="type-c">c</sup></dd></dl></div><div id="d4e334" class="entity"><a name="http://purl.org/spar/datacite/AlternateResourceIdentifier"></a><h3>alternate resource identifier<sup title="class" class="type-c">c</sup><span class="backlink"> back to <a href="#toc">ToC</a> or <a href="#classes">Class ToC</a></span></h3><p><strong>IRI:</strong> http://purl.org/spar/datacite/AlternateResourceIdentifier</p><div class="comment"><span class="markdown">An identifier other than a DOI that is used as an alternative identifier to uniquely identifies the primary resource that is the subject of the DataCite metadata record, belonging to a particular scheme such as ISBN specified by an individual that is a member of the class datacite:ResourceIdentifierScheme. </span></div><dl class="description"><dt>has super-classes</dt><dd><a href="#d4e614" title="http://purl.org/spar/datacite/ResourceIdentifier">resource identifier</a><sup title="class" class="type-c">c</sup></dd><dt>is disjoint with</dt><dd><a href="#d4e590" title="http://purl.org/spar/datacite/PrimaryResourceIdentifier">primary resource identifier</a><sup title="class" class="type-c">c</sup></dd></dl></div><div id="d4e349" class="entity"><a name="http://purl.org/spar/datacite/DescriptionType"></a><h3>description type<sup title="class" class="type-c">c</sup><span class="backlink"> back to <a href="#toc">ToC</a> or <a href="#classes">Class ToC</a></span></h3><p><strong>IRI:</strong> http://purl.org/spar/datacite/DescriptionType</p><div class="comment"><span class="markdown">This class permits classification of the type of description given to a resource described by the DataCite Metadata schema.  Individual members of the class conform to the five values allowed in the DataCite controlled list, namely: 
 
diff --git a/docs/2016-01-21/datacite.json b/docs/2016-01-21/datacite.json
index c02dd1d..6878810 100644
--- a/docs/2016-01-21/datacite.json
+++ b/docs/2016-01-21/datacite.json
@@ -1320,7 +1320,7 @@
       },
       {
         "@language": "en",
-        "@value": "The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  \n\nThis version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF."
+        "@value": "The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  \n\nThis version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF."
       }
     ],
     "http://purl.org/dc/elements/1.1/rights": [
diff --git a/docs/2016-01-21/datacite.nt b/docs/2016-01-21/datacite.nt
index 2e15c52..d1eea0b 100644
--- a/docs/2016-01-21/datacite.nt
+++ b/docs/2016-01-21/datacite.nt
@@ -250,7 +250,7 @@ _:Na289b77481e64769b971ed6c8f752cf2 <http://www.w3.org/2002/07/owl#onProperty> <
 <http://purl.org/spar/datacite/hasDescriptionType> <http://www.w3.org/2000/01/rdf-schema#comment> "An object property permitting specification of the type of description used to describe a resource, defined as an individual of the class datacite:DescriptionType from the DataCite controlled list of Abstract, SeriesInformation, TableOfContent and Other."@en .
 <http://purl.org/spar/datacite/purl> <http://www.w3.org/2000/01/rdf-schema#label> "purl"@en .
 <http://purl.org/spar/datacite/handle> <http://purl.org/spar/fabio/hasURL> "http://www.handle.net/"^^<http://www.w3.org/2001/XMLSchema#anyURI> .
-<http://purl.org/spar/datacite> <http://purl.org/dc/elements/1.1/description> "The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  \n\nThis version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF."@en .
+<http://purl.org/spar/datacite> <http://purl.org/dc/elements/1.1/description> "The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  \n\nThis version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF."@en .
 <http://purl.org/spar/datacite/series-information> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2002/07/owl#NamedIndividual> .
 _:Nec213d90b1804123b79fdac427a0fe01 <http://www.w3.org/2002/07/owl#allValuesFrom> <http://purl.org/spar/datacite/ResourceIdentifierScheme> .
 <http://purl.org/spar/datacite> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2002/07/owl#Ontology> .
diff --git a/docs/2016-01-21/datacite.ttl b/docs/2016-01-21/datacite.ttl
index b7a3549..af141fe 100644
--- a/docs/2016-01-21/datacite.ttl
+++ b/docs/2016-01-21/datacite.ttl
@@ -33,7 +33,7 @@ dc:title a owl:AnnotationProperty .
         "Silvio Peroni"^^xsd:string ;
     dc:date "2016-01-21" ;
     dc:description :datacite.png,
-        """The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  
+        """The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  
 
 This version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF."""@en ;
     dc:rights "This work is distributed under a Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/)."@en ;
diff --git a/docs/2016-01-21/datacite.xml b/docs/2016-01-21/datacite.xml
index c7b7109..44331b1 100644
--- a/docs/2016-01-21/datacite.xml
+++ b/docs/2016-01-21/datacite.xml
@@ -278,7 +278,7 @@
     <dc:creator rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Silvio Peroni</dc:creator>
     <dc:rights xml:lang="en">This work is distributed under a Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/).</dc:rights>
     <dc:description rdf:resource="http://purl.org/spar/datacite/datacite.png"/>
-    <dc:description xml:lang="en">The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  
+    <dc:description xml:lang="en">The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  
 
 This version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF.</dc:description>
     <owl:imports rdf:resource="http://purl.org/co"/>
diff --git a/docs/2018-01-20/datacite.html b/docs/2018-01-20/datacite.html
index e9e7127..ea2d6b4 100644
--- a/docs/2018-01-20/datacite.html
+++ b/docs/2018-01-20/datacite.html
@@ -9,7 +9,7 @@
                         	$.scrollTo(element);
                         }
                     });
-        </script></head><body><div class="head"><h1>The DataCite Ontology</h1><dl><dt>IRI:</dt><dd>http://purl.org/spar/datacite</dd><dt>Version IRI:</dt><dd>http://purl.org/spar/datacite/2018-01-20</dd></dl><dl><dt>Date:</dt><dd>20/01/2018</dd><dt>Current version:</dt><dd>1.0.1</dd></dl><dl><dt>Authors:</dt><dd>David Shotton</dd><dd>Silvio Peroni</dd><dt>Contributors:</dt><dd>Amy J. Barton</dd><dd>Egbert Gramsbergen</dd><dd>Jan Ashton</dd><dd>Marie-Christine Jacquemot</dd></dl><dl><dt>Imported Ontologies:</dt><dd><a href="http://purl.org/co">http://purl.org/co</a> (<a href="https://w3id.org/lode/owlapi/http://purl.org/co">visualise it with LODE</a>)</dd><dd><a href="http://purl.org/spar/literal">http://purl.org/spar/literal</a> (<a href="https://w3id.org/lode/owlapi/http://purl.org/spar/literal">visualise it with LODE</a>)</dd></dl><div class="copyright"><span class="markdown">This work is distributed under a Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/).</span></div></div><hr /><div id="toc"><h2>Table of Content</h2><ol><li><a href="#introduction">Introduction</a></li><li><a href="#classes">Classes</a></li><li><a href="#objectproperties">Object Properties</a></li><li><a href="#namedindividuals">Named Individuals</a></li><li><a href="#annotationproperties">Annotation Properties</a></li><li><a href="#generalaxioms">General Axioms</a></li><li><a href="#namespacedeclarations">Namespace Declarations</a></li></ol></div><h2 id="introduction">Introduction</h2><span class="markdown">The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  
+        </script></head><body><div class="head"><h1>The DataCite Ontology</h1><dl><dt>IRI:</dt><dd>http://purl.org/spar/datacite</dd><dt>Version IRI:</dt><dd>http://purl.org/spar/datacite/2018-01-20</dd></dl><dl><dt>Date:</dt><dd>20/01/2018</dd><dt>Current version:</dt><dd>1.0.1</dd></dl><dl><dt>Authors:</dt><dd>David Shotton</dd><dd>Silvio Peroni</dd><dt>Contributors:</dt><dd>Amy J. Barton</dd><dd>Egbert Gramsbergen</dd><dd>Jan Ashton</dd><dd>Marie-Christine Jacquemot</dd></dl><dl><dt>Imported Ontologies:</dt><dd><a href="http://purl.org/co">http://purl.org/co</a> (<a href="https://w3id.org/lode/owlapi/http://purl.org/co">visualise it with LODE</a>)</dd><dd><a href="http://purl.org/spar/literal">http://purl.org/spar/literal</a> (<a href="https://w3id.org/lode/owlapi/http://purl.org/spar/literal">visualise it with LODE</a>)</dd></dl><div class="copyright"><span class="markdown">This work is distributed under a Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/).</span></div></div><hr /><div id="toc"><h2>Table of Content</h2><ol><li><a href="#introduction">Introduction</a></li><li><a href="#classes">Classes</a></li><li><a href="#objectproperties">Object Properties</a></li><li><a href="#namedindividuals">Named Individuals</a></li><li><a href="#annotationproperties">Annotation Properties</a></li><li><a href="#generalaxioms">General Axioms</a></li><li><a href="#namespacedeclarations">Namespace Declarations</a></li></ol></div><h2 id="introduction">Introduction</h2><span class="markdown">The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  
 
 This version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF.</span><p class="image"><object data="datacite.png" type="image/png"></object></p><div id="classes"><h2>Classes</h2><ul class="hlist"><li><a href="#d4e280" title="http://purl.org/spar/datacite/AgentIdentifier">agent identifier</a></li><li><a href="#d4e305" title="http://purl.org/spar/datacite/AgentIndetifierScheme">agent identifier scheme</a></li><li><a href="#d4e335" title="http://purl.org/spar/datacite/AlternateResourceIdentifier">alternate resource identifier</a></li><li><a href="#d4e350" title="http://purl.org/spar/datacite/DescriptionType">description type</a></li><li><a href="#d4e363" title="http://purl.org/spar/datacite/FunderIdentifier">funder identifier</a></li><li><a href="#d4e387" title="http://purl.org/spar/datacite/FunderIdentifierScheme">funder identifier scheme</a></li><li><a href="#d4e416" title="http://purl.org/spar/datacite/Identifier">identifier</a></li><li><a href="#d4e459" title="http://purl.org/spar/datacite/IdentifierScheme">identifier scheme</a></li><li><a href="#d4e471" title="http://purl.org/spar/datacite/MetadataScheme">metadata scheme</a></li><li><a href="#d4e486" title="http://purl.org/spar/datacite/OrganizationIdentifier">organization identifier</a></li><li><a href="#d4e509" title="http://purl.org/spar/datacite/OrganizationIdentifierScheme">organization identifier scheme</a></li><li><a href="#d4e539" title="http://purl.org/spar/datacite/PersonalIdentifier">personal identifier</a></li><li><a href="#d4e562" title="http://purl.org/spar/datacite/PersonalIdentifierScheme">personal identifier scheme</a></li><li><a href="#d4e591" title="http://purl.org/spar/datacite/PrimaryResourceIdentifier">primary resource identifier</a></li><li><a href="#d4e615" title="http://purl.org/spar/datacite/ResourceIdentifier">resource identifier</a></li><li><a href="#d4e638" title="http://purl.org/spar/datacite/ResourceIdentifierScheme">resource identifier scheme</a></li></ul><div id="d4e280" class="entity"><a name="http://purl.org/spar/datacite/AgentIdentifier"></a><h3>agent identifier<sup title="class" class="type-c">c</sup><span class="backlink"> back to <a href="#toc">ToC</a> or <a href="#classes">Class ToC</a></span></h3><p><strong>IRI:</strong> http://purl.org/spar/datacite/AgentIdentifier</p><div class="comment"><span class="markdown">An identifier that uniquely identities an individual agent, belonging to a particular identifier scheme specified by an individual within the class datacite:AgentIdentifierScheme (or any of its subclasses).</span></div><dl class="description"><dt>has super-classes</dt><dd><a href="#d4e416" title="http://purl.org/spar/datacite/Identifier">identifier</a><sup title="class" class="type-c">c</sup></dd><dd><a href="#d4e239" title="http://purl.org/spar/datacite/usesIdentifierScheme">uses identifier scheme</a><sup title="object property" class="type-op">op</sup> <span class="logic">only</span> <a href="#d4e280" title="http://purl.org/spar/datacite/AgentIdentifier">agent identifier</a><sup title="class" class="type-c">c</sup></dd><dt>has sub-classes</dt><dd><a href="#d4e363" title="http://purl.org/spar/datacite/FunderIdentifier">funder identifier</a><sup title="class" class="type-c">c</sup>, <a href="#d4e486" title="http://purl.org/spar/datacite/OrganizationIdentifier">organization identifier</a><sup title="class" class="type-c">c</sup>, <a href="#d4e539" title="http://purl.org/spar/datacite/PersonalIdentifier">personal identifier</a><sup title="class" class="type-c">c</sup></dd><dt>is disjoint with</dt><dd><a href="#d4e615" title="http://purl.org/spar/datacite/ResourceIdentifier">resource identifier</a><sup title="class" class="type-c">c</sup></dd></dl></div><div id="d4e305" class="entity"><a name="http://purl.org/spar/datacite/AgentIndetifierScheme"></a><h3>agent identifier scheme<sup title="class" class="type-c">c</sup><span class="backlink"> back to <a href="#toc">ToC</a> or <a href="#classes">Class ToC</a></span></h3><p><strong>IRI:</strong> http://purl.org/spar/datacite/AgentIndetifierScheme</p><div class="comment"><span class="markdown">The identifier scheme used to identify an agent. Individual schemes are defines as members of its sub-classes.</span></div><dl class="description"><dt>has super-classes</dt><dd><a href="#d4e459" title="http://purl.org/spar/datacite/IdentifierScheme">identifier scheme</a><sup title="class" class="type-c">c</sup></dd><dd><span class="logic">inverse</span> <a href="#d4e239" title="http://purl.org/spar/datacite/usesIdentifierScheme">uses identifier scheme</a><sup title="object property" class="type-op">op</sup> <span class="logic">some</span> <a href="#d4e280" title="http://purl.org/spar/datacite/AgentIdentifier">agent identifier</a><sup title="class" class="type-c">c</sup></dd><dt>has sub-classes</dt><dd><a href="#d4e387" title="http://purl.org/spar/datacite/FunderIdentifierScheme">funder identifier scheme</a><sup title="class" class="type-c">c</sup>, <a href="#d4e509" title="http://purl.org/spar/datacite/OrganizationIdentifierScheme">organization identifier scheme</a><sup title="class" class="type-c">c</sup>, <a href="#d4e562" title="http://purl.org/spar/datacite/PersonalIdentifierScheme">personal identifier scheme</a><sup title="class" class="type-c">c</sup></dd></dl></div><div id="d4e335" class="entity"><a name="http://purl.org/spar/datacite/AlternateResourceIdentifier"></a><h3>alternate resource identifier<sup title="class" class="type-c">c</sup><span class="backlink"> back to <a href="#toc">ToC</a> or <a href="#classes">Class ToC</a></span></h3><p><strong>IRI:</strong> http://purl.org/spar/datacite/AlternateResourceIdentifier</p><div class="comment"><span class="markdown">An identifier other than a DOI that is used as an alternative identifier to uniquely identifies the primary resource that is the subject of the DataCite metadata record, belonging to a particular scheme such as ISBN specified by an individual that is a member of the class datacite:ResourceIdentifierScheme. </span></div><dl class="description"><dt>has super-classes</dt><dd><a href="#d4e615" title="http://purl.org/spar/datacite/ResourceIdentifier">resource identifier</a><sup title="class" class="type-c">c</sup></dd><dt>is disjoint with</dt><dd><a href="#d4e591" title="http://purl.org/spar/datacite/PrimaryResourceIdentifier">primary resource identifier</a><sup title="class" class="type-c">c</sup></dd></dl></div><div id="d4e350" class="entity"><a name="http://purl.org/spar/datacite/DescriptionType"></a><h3>description type<sup title="class" class="type-c">c</sup><span class="backlink"> back to <a href="#toc">ToC</a> or <a href="#classes">Class ToC</a></span></h3><p><strong>IRI:</strong> http://purl.org/spar/datacite/DescriptionType</p><div class="comment"><span class="markdown">This class permits classification of the type of description given to a resource described by the DataCite Metadata schema.  Individual members of the class conform to the five values allowed in the DataCite controlled list, namely: 
 
diff --git a/docs/2018-01-20/datacite.json b/docs/2018-01-20/datacite.json
index 8c90fd0..f22f736 100644
--- a/docs/2018-01-20/datacite.json
+++ b/docs/2018-01-20/datacite.json
@@ -1406,7 +1406,7 @@
       },
       {
         "@language": "en",
-        "@value": "The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  \n\nThis version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF."
+        "@value": "The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  \n\nThis version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF."
       }
     ],
     "http://purl.org/dc/elements/1.1/rights": [
diff --git a/docs/2018-01-20/datacite.nt b/docs/2018-01-20/datacite.nt
index 5faf6e4..07a6303 100644
--- a/docs/2018-01-20/datacite.nt
+++ b/docs/2018-01-20/datacite.nt
@@ -205,7 +205,7 @@ _:Nefdb8875263143aea3d35e8833942a04 <http://www.w3.org/1999/02/22-rdf-syntax-ns#
 _:Ndd91c15458b545b3867776ccef851906 <http://www.w3.org/2002/07/owl#someValuesFrom> <http://purl.org/spar/datacite/AgentIdentifier> .
 _:Nf48619724ca649aea11291091bcf2d1d <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2002/07/owl#Restriction> .
 <http://purl.org/spar/datacite/purl> <http://www.w3.org/2000/01/rdf-schema#label> "purl"@en .
-<http://purl.org/spar/datacite> <http://purl.org/dc/elements/1.1/description> "The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  \n\nThis version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF."@en .
+<http://purl.org/spar/datacite> <http://purl.org/dc/elements/1.1/description> "The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  \n\nThis version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF."@en .
 <http://purl.org/spar/datacite/infouri> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://purl.org/spar/datacite/ResourceIdentifierScheme> .
 <http://purl.org/spar/datacite/pmcid> <http://www.w3.org/2000/01/rdf-schema#comment> "PubMed Central Identifier"@en .
 <http://purl.org/spar/datacite/IdentifierScheme> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2002/07/owl#Class> .
diff --git a/docs/2018-01-20/datacite.owl b/docs/2018-01-20/datacite.owl
index 7de4d58..cc5d3a1 100644
--- a/docs/2018-01-20/datacite.owl
+++ b/docs/2018-01-20/datacite.owl
@@ -20,7 +20,7 @@
         <owl:versionIRI rdf:resource="http://purl.org/spar/datacite/2018-01-20"/>
         <owl:imports rdf:resource="http://purl.org/spar/literal"/>
         <owl:imports rdf:resource="http://purl.org/co"/>
-        <dc:description xml:lang="en">The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  
+        <dc:description xml:lang="en">The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  
 
 This version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF.</dc:description>
         <dc:creator rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Silvio Peroni</dc:creator>
diff --git a/docs/2018-01-20/datacite.ttl b/docs/2018-01-20/datacite.ttl
index 06d29d4..5f671c7 100644
--- a/docs/2018-01-20/datacite.ttl
+++ b/docs/2018-01-20/datacite.ttl
@@ -35,7 +35,7 @@ dc:title a owl:AnnotationProperty .
         "Silvio Peroni"^^xsd:string ;
     dc:date "2018-01-20" ;
     dc:description :datacite.png,
-        """The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  
+        """The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  
 
 This version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF."""@en ;
     dc:rights "This work is distributed under a Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/)."@en ;
diff --git a/docs/2018-01-20/datacite.xml b/docs/2018-01-20/datacite.xml
index 01bf486..1b8f688 100644
--- a/docs/2018-01-20/datacite.xml
+++ b/docs/2018-01-20/datacite.xml
@@ -487,7 +487,7 @@ All the prefixes used here refer to external ontologies, i.e., DC Metadata Terms
     <dc:contributor>Egbert Gramsbergen</dc:contributor>
     <owl:versionInfo rdf:datatype="http://www.w3.org/2001/XMLSchema#string">1.0.1</owl:versionInfo>
     <owl:imports rdf:resource="http://purl.org/spar/literal"/>
-    <dc:description xml:lang="en">The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  
+    <dc:description xml:lang="en">The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  
 
 This version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF.</dc:description>
     <dc:contributor>Marie-Christine Jacquemot</dc:contributor>
diff --git a/docs/2021-09-24/datacite.html b/docs/2021-09-24/datacite.html
index ff7aa43..bb8b65a 100644
--- a/docs/2021-09-24/datacite.html
+++ b/docs/2021-09-24/datacite.html
@@ -19,7 +19,7 @@
 
 **License:** [Creative Commons Attribution 4.0 International](https://creativecommons.org/licenses/by/4.0/legalcode)
 
-**Website:** http://www.sparontologies.net/ontologies/datacite</span><div id="toc"><h2>Table of Content</h2><ol><li><a href="#introduction">Introduction</a></li><li><a href="#classes">Classes</a></li><li><a href="#objectproperties">Object Properties</a></li><li><a href="#namedindividuals">Named Individuals</a></li><li><a href="#annotationproperties">Annotation Properties</a></li><li><a href="#generalaxioms">General Axioms</a></li><li><a href="#namespacedeclarations">Namespace Declarations</a></li></ol></div><h2 id="introduction">Introduction</h2><span class="markdown">The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  
+**Website:** http://www.sparontologies.net/ontologies/datacite</span><div id="toc"><h2>Table of Content</h2><ol><li><a href="#introduction">Introduction</a></li><li><a href="#classes">Classes</a></li><li><a href="#objectproperties">Object Properties</a></li><li><a href="#namedindividuals">Named Individuals</a></li><li><a href="#annotationproperties">Annotation Properties</a></li><li><a href="#generalaxioms">General Axioms</a></li><li><a href="#namespacedeclarations">Namespace Declarations</a></li></ol></div><h2 id="introduction">Introduction</h2><span class="markdown">The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  
 
 This version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF.</span><p class="image"><object data="datacite.png" type="image/png"></object></p><div id="classes"><h2>Classes</h2><ul class="hlist"><li><a href="#d4e285" title="http://purl.org/spar/datacite/AgentIdentifier">agent identifier</a></li><li><a href="#d4e310" title="http://purl.org/spar/datacite/AgentIdentifierScheme">agent identifier scheme</a></li><li><a href="#d4e340" title="http://purl.org/spar/datacite/AlternateResourceIdentifier">alternate resource identifier</a></li><li><a href="#d4e355" title="http://purl.org/spar/datacite/DescriptionType">description type</a></li><li><a href="#d4e368" title="http://purl.org/spar/datacite/FunderIdentifier">funder identifier</a></li><li><a href="#d4e392" title="http://purl.org/spar/datacite/FunderIdentifierScheme">funder identifier scheme</a></li><li><a href="#d4e421" title="http://purl.org/spar/datacite/Identifier">identifier</a></li><li><a href="#d4e464" title="http://purl.org/spar/datacite/IdentifierScheme">identifier scheme</a></li><li><a href="#d4e476" title="http://purl.org/spar/datacite/MetadataScheme">metadata scheme</a></li><li><a href="#d4e491" title="http://purl.org/spar/datacite/OrganizationIdentifier">organization identifier</a></li><li><a href="#d4e514" title="http://purl.org/spar/datacite/OrganizationIdentifierScheme">organization identifier scheme</a></li><li><a href="#d4e544" title="http://purl.org/spar/datacite/PersonalIdentifier">personal identifier</a></li><li><a href="#d4e567" title="http://purl.org/spar/datacite/PersonalIdentifierScheme">personal identifier scheme</a></li><li><a href="#d4e596" title="http://purl.org/spar/datacite/PrimaryResourceIdentifier">primary resource identifier</a></li><li><a href="#d4e620" title="http://purl.org/spar/datacite/ResourceIdentifier">resource identifier</a></li><li><a href="#d4e643" title="http://purl.org/spar/datacite/ResourceIdentifierScheme">resource identifier scheme</a></li></ul><div id="d4e285" class="entity"><a name="http://purl.org/spar/datacite/AgentIdentifier"></a><h3>agent identifier<sup title="class" class="type-c">c</sup><span class="backlink"> back to <a href="#toc">ToC</a> or <a href="#classes">Class ToC</a></span></h3><p><strong>IRI:</strong> http://purl.org/spar/datacite/AgentIdentifier</p><div class="comment"><span class="markdown">An identifier that uniquely identities an individual agent, belonging to a particular identifier scheme specified by an individual within the class datacite:AgentIdentifierScheme (or any of its subclasses).</span></div><dl class="description"><dt>has super-classes</dt><dd><a href="#d4e421" title="http://purl.org/spar/datacite/Identifier">identifier</a><sup title="class" class="type-c">c</sup></dd><dd><a href="#d4e244" title="http://purl.org/spar/datacite/usesIdentifierScheme">uses identifier scheme</a><sup title="object property" class="type-op">op</sup> <span class="logic">only</span> <a href="#d4e285" title="http://purl.org/spar/datacite/AgentIdentifier">agent identifier</a><sup title="class" class="type-c">c</sup></dd><dt>has sub-classes</dt><dd><a href="#d4e368" title="http://purl.org/spar/datacite/FunderIdentifier">funder identifier</a><sup title="class" class="type-c">c</sup>, <a href="#d4e491" title="http://purl.org/spar/datacite/OrganizationIdentifier">organization identifier</a><sup title="class" class="type-c">c</sup>, <a href="#d4e544" title="http://purl.org/spar/datacite/PersonalIdentifier">personal identifier</a><sup title="class" class="type-c">c</sup></dd><dt>is disjoint with</dt><dd><a href="#d4e620" title="http://purl.org/spar/datacite/ResourceIdentifier">resource identifier</a><sup title="class" class="type-c">c</sup></dd></dl></div><div id="d4e310" class="entity"><a name="http://purl.org/spar/datacite/AgentIdentifierScheme"></a><h3>agent identifier scheme<sup title="class" class="type-c">c</sup><span class="backlink"> back to <a href="#toc">ToC</a> or <a href="#classes">Class ToC</a></span></h3><p><strong>IRI:</strong> http://purl.org/spar/datacite/AgentIdentifierScheme</p><div class="comment"><span class="markdown">The identifier scheme used to identify an agent. Individual schemes are defines as members of its sub-classes.</span></div><dl class="description"><dt>has super-classes</dt><dd><a href="#d4e464" title="http://purl.org/spar/datacite/IdentifierScheme">identifier scheme</a><sup title="class" class="type-c">c</sup></dd><dd><span class="logic">inverse</span> <a href="#d4e244" title="http://purl.org/spar/datacite/usesIdentifierScheme">uses identifier scheme</a><sup title="object property" class="type-op">op</sup> <span class="logic">some</span> <a href="#d4e285" title="http://purl.org/spar/datacite/AgentIdentifier">agent identifier</a><sup title="class" class="type-c">c</sup></dd><dt>has sub-classes</dt><dd><a href="#d4e392" title="http://purl.org/spar/datacite/FunderIdentifierScheme">funder identifier scheme</a><sup title="class" class="type-c">c</sup>, <a href="#d4e514" title="http://purl.org/spar/datacite/OrganizationIdentifierScheme">organization identifier scheme</a><sup title="class" class="type-c">c</sup>, <a href="#d4e567" title="http://purl.org/spar/datacite/PersonalIdentifierScheme">personal identifier scheme</a><sup title="class" class="type-c">c</sup></dd><dt>has members</dt><dd><a href="#d4e926" title="http://purl.org/spar/datacite/github">github</a><sup title="named individual" class="type-ni">ni</sup>, <a href="#d4e1105" title="http://purl.org/spar/datacite/lattes">lattes</a><sup title="named individual" class="type-ni">ni</sup>, <a href="#d4e1121" title="http://purl.org/spar/datacite/linkedin">linkedin</a><sup title="named individual" class="type-ni">ni</sup>, <a href="#d4e1366" title="http://purl.org/spar/datacite/orcid">orcid</a><sup title="named individual" class="type-ni">ni</sup>, <a href="#d4e1604" title="http://purl.org/spar/datacite/twitter">twitter</a><sup title="named individual" class="type-ni">ni</sup></dd></dl></div><div id="d4e340" class="entity"><a name="http://purl.org/spar/datacite/AlternateResourceIdentifier"></a><h3>alternate resource identifier<sup title="class" class="type-c">c</sup><span class="backlink"> back to <a href="#toc">ToC</a> or <a href="#classes">Class ToC</a></span></h3><p><strong>IRI:</strong> http://purl.org/spar/datacite/AlternateResourceIdentifier</p><div class="comment"><span class="markdown">An identifier other than a DOI that is used as an alternative identifier to uniquely identifies the primary resource that is the subject of the DataCite metadata record, belonging to a particular scheme such as ISBN specified by an individual that is a member of the class datacite:ResourceIdentifierScheme. </span></div><dl class="description"><dt>has super-classes</dt><dd><a href="#d4e620" title="http://purl.org/spar/datacite/ResourceIdentifier">resource identifier</a><sup title="class" class="type-c">c</sup></dd><dt>is disjoint with</dt><dd><a href="#d4e596" title="http://purl.org/spar/datacite/PrimaryResourceIdentifier">primary resource identifier</a><sup title="class" class="type-c">c</sup></dd></dl></div><div id="d4e355" class="entity"><a name="http://purl.org/spar/datacite/DescriptionType"></a><h3>description type<sup title="class" class="type-c">c</sup><span class="backlink"> back to <a href="#toc">ToC</a> or <a href="#classes">Class ToC</a></span></h3><p><strong>IRI:</strong> http://purl.org/spar/datacite/DescriptionType</p><div class="comment"><span class="markdown">This class permits classification of the type of description given to a resource described by the DataCite Metadata schema.  Individual members of the class conform to the five values allowed in the DataCite controlled list, namely: 
 
diff --git a/docs/2021-09-24/datacite.json b/docs/2021-09-24/datacite.json
index 7d709d5..7bd8595 100644
--- a/docs/2021-09-24/datacite.json
+++ b/docs/2021-09-24/datacite.json
@@ -448,7 +448,7 @@
       },
       {
         "@language": "en",
-        "@value": "The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  \n\nThis version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF."
+        "@value": "The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  \n\nThis version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF."
       }
     ],
     "http://purl.org/dc/elements/1.1/rights": [
diff --git a/docs/2021-09-24/datacite.nt b/docs/2021-09-24/datacite.nt
index 0579e4d..ac074e8 100644
--- a/docs/2021-09-24/datacite.nt
+++ b/docs/2021-09-24/datacite.nt
@@ -317,7 +317,7 @@ _:N2c7dd4cf69d241d0a4906772ec925550 <http://www.w3.org/1999/02/22-rdf-syntax-ns#
 <http://purl.org/spar/datacite> <http://www.w3.org/2002/07/owl#priorVersion> <http://purl.org/spar/datacite/2018-01-20> .
 <http://purl.org/spar/datacite/hasDescription> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2002/07/owl#ObjectProperty> .
 <http://purl.org/spar/datacite/pii> <http://www.w3.org/2000/01/rdf-schema#comment> "Pulisher Item Identifier scheme."@en .
-<http://purl.org/spar/datacite> <http://purl.org/dc/elements/1.1/description> "The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  \n\nThis version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF."@en .
+<http://purl.org/spar/datacite> <http://purl.org/dc/elements/1.1/description> "The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  \n\nThis version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF."@en .
 <http://purl.org/spar/datacite/math-genealogy> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2002/07/owl#NamedIndividual> .
 <http://purl.org/spar/datacite/researcherid> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://purl.org/spar/datacite/PersonalIdentifierScheme> .
 <http://purl.org/spar/datacite/jst> <http://www.w3.org/2000/01/rdf-schema#comment> "Japanese Science and Technology Agency identifier scheme"@en .
diff --git a/docs/2021-09-24/datacite.ttl b/docs/2021-09-24/datacite.ttl
index 92504b0..1550639 100644
--- a/docs/2021-09-24/datacite.ttl
+++ b/docs/2021-09-24/datacite.ttl
@@ -31,7 +31,7 @@ dc:title a owl:AnnotationProperty .
         "Silvio Peroni"^^xsd:string ;
     dc:date "2021-09-24"^^xsd:string ;
     dc:description :datacite.png,
-        """The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  
+        """The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  
 
 This version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF."""@en ;
     dc:rights "This work is distributed under a Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/)."@en ;
diff --git a/docs/2021-09-24/datacite.xml b/docs/2021-09-24/datacite.xml
index a983fd2..ae56889 100644
--- a/docs/2021-09-24/datacite.xml
+++ b/docs/2021-09-24/datacite.xml
@@ -72,7 +72,7 @@
     <owl:priorVersion rdf:resource="http://purl.org/spar/datacite/2018-01-20"/>
     <dc:contributor>Egbert Gramsbergen</dc:contributor>
     <dc:contributor>Marie-Christine Jacquemot</dc:contributor>
-    <dc:description xml:lang="en">The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  
+    <dc:description xml:lang="en">The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  
 
 This version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF.</dc:description>
     <owl:versionIRI rdf:resource="http://purl.org/spar/datacite/2021-09-24"/>
diff --git a/docs/2022-09-15/datacite.html b/docs/2022-09-15/datacite.html
index f96bb17..acdfa97 100644
--- a/docs/2022-09-15/datacite.html
+++ b/docs/2022-09-15/datacite.html
@@ -29,7 +29,7 @@
 
 **License:** [Creative Commons Attribution 4.0 International](https://creativecommons.org/licenses/by/4.0/legalcode)
 
-**Website:** http://www.sparontologies.net/ontologies/datacite</span><div id="toc"><h2>Table of Content</h2><ol><li><a href="#introduction">Introduction</a></li><li><a href="#classes">Classes</a></li><li><a href="#objectproperties">Object Properties</a></li><li><a href="#namedindividuals">Named Individuals</a></li><li><a href="#annotationproperties">Annotation Properties</a></li><li><a href="#generalaxioms">General Axioms</a></li><li><a href="#namespacedeclarations">Namespace Declarations</a></li></ol></div><h2 id="introduction">Introduction</h2><span class="markdown">The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  
+**Website:** http://www.sparontologies.net/ontologies/datacite</span><div id="toc"><h2>Table of Content</h2><ol><li><a href="#introduction">Introduction</a></li><li><a href="#classes">Classes</a></li><li><a href="#objectproperties">Object Properties</a></li><li><a href="#namedindividuals">Named Individuals</a></li><li><a href="#annotationproperties">Annotation Properties</a></li><li><a href="#generalaxioms">General Axioms</a></li><li><a href="#namespacedeclarations">Namespace Declarations</a></li></ol></div><h2 id="introduction">Introduction</h2><span class="markdown">The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  
 
 This version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF.</span><p class="image"><object data="datacite.png" type="image/png"></object></p><div id="classes"><h2>Classes</h2><ul class="hlist"><li><a href="#d4e287" title="http://purl.org/spar/datacite/AgentIdentifier">agent identifier</a></li><li><a href="#d4e313" title="http://purl.org/spar/datacite/AgentIdentifierScheme">agent identifier scheme</a></li><li><a href="#d4e342" title="http://purl.org/spar/datacite/AlternateResourceIdentifier">alternate resource identifier</a></li><li><a href="#d4e357" title="http://purl.org/spar/datacite/DescriptionType">description type</a></li><li><a href="#d4e371" title="http://purl.org/spar/datacite/FunderIdentifier">funder identifier</a></li><li><a href="#d4e394" title="http://purl.org/spar/datacite/FunderIdentifierScheme">funder identifier scheme</a></li><li><a href="#d4e423" title="http://purl.org/spar/datacite/Identifier">identifier</a></li><li><a href="#d4e467" title="http://purl.org/spar/datacite/IdentifierScheme">identifier scheme</a></li><li><a href="#d4e478" title="http://purl.org/spar/datacite/MetadataScheme">metadata scheme</a></li><li><a href="#d4e493" title="http://purl.org/spar/datacite/OrganizationIdentifier">organization identifier</a></li><li><a href="#d4e517" title="http://purl.org/spar/datacite/OrganizationIdentifierScheme">organization identifier scheme</a></li><li><a href="#d4e546" title="http://purl.org/spar/datacite/PersonalIdentifier">personal identifier</a></li><li><a href="#d4e569" title="http://purl.org/spar/datacite/PersonalIdentifierScheme">personal identifier scheme</a></li><li><a href="#d4e599" title="http://purl.org/spar/datacite/PrimaryResourceIdentifier">primary resource identifier</a></li><li><a href="#d4e622" title="http://purl.org/spar/datacite/ResourceIdentifier">resource identifier</a></li><li><a href="#d4e645" title="http://purl.org/spar/datacite/ResourceIdentifierScheme">resource identifier scheme</a></li></ul><div id="d4e287" class="entity"><a name="http://purl.org/spar/datacite/AgentIdentifier"></a><h3>agent identifier<sup title="class" class="type-c">c</sup><span class="backlink"> back to <a href="#toc">ToC</a> or <a href="#classes">Class ToC</a></span></h3><p><strong>IRI:</strong> http://purl.org/spar/datacite/AgentIdentifier</p><div class="comment"><span class="markdown">An identifier that uniquely identities an individual agent, belonging to a particular identifier scheme specified by an individual within the class datacite:AgentIdentifierScheme (or any of its subclasses).</span></div><dl class="description"><dt>has super-classes</dt><dd><a href="#d4e423" title="http://purl.org/spar/datacite/Identifier">identifier</a><sup title="class" class="type-c">c</sup></dd><dd><a href="#d4e242" title="http://purl.org/spar/datacite/usesIdentifierScheme">uses identifier scheme</a><sup title="object property" class="type-op">op</sup> <span class="logic">only</span> <a href="#d4e287" title="http://purl.org/spar/datacite/AgentIdentifier">agent identifier</a><sup title="class" class="type-c">c</sup></dd><dt>has sub-classes</dt><dd><a href="#d4e371" title="http://purl.org/spar/datacite/FunderIdentifier">funder identifier</a><sup title="class" class="type-c">c</sup>, <a href="#d4e493" title="http://purl.org/spar/datacite/OrganizationIdentifier">organization identifier</a><sup title="class" class="type-c">c</sup>, <a href="#d4e546" title="http://purl.org/spar/datacite/PersonalIdentifier">personal identifier</a><sup title="class" class="type-c">c</sup></dd><dt>is disjoint with</dt><dd><a href="#d4e622" title="http://purl.org/spar/datacite/ResourceIdentifier">resource identifier</a><sup title="class" class="type-c">c</sup></dd></dl></div><div id="d4e313" class="entity"><a name="http://purl.org/spar/datacite/AgentIdentifierScheme"></a><h3>agent identifier scheme<sup title="class" class="type-c">c</sup><span class="backlink"> back to <a href="#toc">ToC</a> or <a href="#classes">Class ToC</a></span></h3><p><strong>IRI:</strong> http://purl.org/spar/datacite/AgentIdentifierScheme</p><div class="comment"><span class="markdown">The identifier scheme used to identify an agent. Individual schemes are defines as members of its sub-classes.</span></div><dl class="description"><dt>has super-classes</dt><dd><a href="#d4e467" title="http://purl.org/spar/datacite/IdentifierScheme">identifier scheme</a><sup title="class" class="type-c">c</sup></dd><dd><span class="logic">inverse</span> <a href="#d4e242" title="http://purl.org/spar/datacite/usesIdentifierScheme">uses identifier scheme</a><sup title="object property" class="type-op">op</sup> <span class="logic">some</span> <a href="#d4e287" title="http://purl.org/spar/datacite/AgentIdentifier">agent identifier</a><sup title="class" class="type-c">c</sup></dd><dt>has sub-classes</dt><dd><a href="#d4e394" title="http://purl.org/spar/datacite/FunderIdentifierScheme">funder identifier scheme</a><sup title="class" class="type-c">c</sup>, <a href="#d4e517" title="http://purl.org/spar/datacite/OrganizationIdentifierScheme">organization identifier scheme</a><sup title="class" class="type-c">c</sup>, <a href="#d4e569" title="http://purl.org/spar/datacite/PersonalIdentifierScheme">personal identifier scheme</a><sup title="class" class="type-c">c</sup></dd><dt>has members</dt><dd><a href="#d4e928" title="http://purl.org/spar/datacite/github">github</a><sup title="named individual" class="type-ni">ni</sup>, <a href="#d4e1123" title="http://purl.org/spar/datacite/lattes">lattes</a><sup title="named individual" class="type-ni">ni</sup>, <a href="#d4e1140" title="http://purl.org/spar/datacite/linkedin">linkedin</a><sup title="named individual" class="type-ni">ni</sup>, <a href="#d4e1401" title="http://purl.org/spar/datacite/orcid">orcid</a><sup title="named individual" class="type-ni">ni</sup>, <a href="#d4e1656" title="http://purl.org/spar/datacite/twitter">twitter</a><sup title="named individual" class="type-ni">ni</sup></dd></dl></div><div id="d4e342" class="entity"><a name="http://purl.org/spar/datacite/AlternateResourceIdentifier"></a><h3>alternate resource identifier<sup title="class" class="type-c">c</sup><span class="backlink"> back to <a href="#toc">ToC</a> or <a href="#classes">Class ToC</a></span></h3><p><strong>IRI:</strong> http://purl.org/spar/datacite/AlternateResourceIdentifier</p><div class="comment"><span class="markdown">An identifier other than a DOI that is used as an alternative identifier to uniquely identifies the primary resource that is the subject of the DataCite metadata record, belonging to a particular scheme such as ISBN specified by an individual that is a member of the class datacite:ResourceIdentifierScheme. </span></div><dl class="description"><dt>has super-classes</dt><dd><a href="#d4e622" title="http://purl.org/spar/datacite/ResourceIdentifier">resource identifier</a><sup title="class" class="type-c">c</sup></dd><dt>is disjoint with</dt><dd><a href="#d4e599" title="http://purl.org/spar/datacite/PrimaryResourceIdentifier">primary resource identifier</a><sup title="class" class="type-c">c</sup></dd></dl></div><div id="d4e357" class="entity"><a name="http://purl.org/spar/datacite/DescriptionType"></a><h3>description type<sup title="class" class="type-c">c</sup><span class="backlink"> back to <a href="#toc">ToC</a> or <a href="#classes">Class ToC</a></span></h3><p><strong>IRI:</strong> http://purl.org/spar/datacite/DescriptionType</p><div class="comment"><span class="markdown">This class permits classification of the type of description given to a resource described by the DataCite Metadata schema.  Individual members of the class conform to the five values allowed in the DataCite controlled list, namely: 
 
diff --git a/docs/2022-09-15/datacite.json b/docs/2022-09-15/datacite.json
index 599d2a8..64c1f5c 100644
--- a/docs/2022-09-15/datacite.json
+++ b/docs/2022-09-15/datacite.json
@@ -2742,7 +2742,7 @@
       },
       {
         "@language": "en",
-        "@value": "The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  \n\nThis version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF."
+        "@value": "The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  \n\nThis version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF."
       }
     ],
     "http://purl.org/dc/elements/1.1/rights": [
diff --git a/docs/2022-09-15/datacite.nt b/docs/2022-09-15/datacite.nt
index 2f3e52c..af98cbb 100644
--- a/docs/2022-09-15/datacite.nt
+++ b/docs/2022-09-15/datacite.nt
@@ -12,7 +12,7 @@ _:N153bcf6575e04436adc29fe9fe11db73 <http://www.w3.org/2002/07/owl#onProperty> <
 _:N8209b50abbdc41d0a0c4a1d17cfb4aea <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2002/07/owl#Restriction> .
 <http://purl.org/spar/datacite/methods> <http://www.w3.org/2000/01/rdf-schema#label> "methods"@en .
 <http://purl.org/spar/datacite/usesMetadataScheme> <http://www.w3.org/2000/01/rdf-schema#range> <http://purl.org/spar/datacite/MetadataScheme> .
-<http://purl.org/spar/datacite> <http://purl.org/dc/elements/1.1/description> "The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  \n\nThis version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF."@en .
+<http://purl.org/spar/datacite> <http://purl.org/dc/elements/1.1/description> "The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  \n\nThis version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF."@en .
 <http://purl.org/spar/datacite/PersonalIdentifierScheme> <http://www.w3.org/2000/01/rdf-schema#subClassOf> <http://purl.org/spar/datacite/AgentIdentifierScheme> .
 <http://purl.org/spar/datacite/purl> <http://www.w3.org/2000/01/rdf-schema#comment> "Persistent Uniform Resource Locator"@en .
 <http://purl.org/spar/datacite/PersonalIdentifierScheme> <http://www.w3.org/2000/01/rdf-schema#subClassOf> _:N20c91e7f466142dc8820d76c988f7a0c .
diff --git a/docs/2022-09-15/datacite.ttl b/docs/2022-09-15/datacite.ttl
index 4a13799..0247b24 100644
--- a/docs/2022-09-15/datacite.ttl
+++ b/docs/2022-09-15/datacite.ttl
@@ -31,7 +31,7 @@ dc:title a owl:AnnotationProperty .
         "Silvio Peroni"^^xsd:string ;
     dc:date "2022-09-15"^^xsd:string ;
     dc:description :datacite.png,
-        """The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  
+        """The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  
 
 This version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF."""@en ;
     dc:rights "This work is distributed under a Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/)."@en ;
diff --git a/docs/2022-09-15/datacite.xml b/docs/2022-09-15/datacite.xml
index a3d9b07..1690bac 100644
--- a/docs/2022-09-15/datacite.xml
+++ b/docs/2022-09-15/datacite.xml
@@ -102,7 +102,7 @@
     <dc:creator rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Silvio Peroni</dc:creator>
     <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#string">2022-09-15</dc:date>
     <dc:description rdf:resource="http://purl.org/spar/datacite/datacite.png"/>
-    <dc:description xml:lang="en">The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  
+    <dc:description xml:lang="en">The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  
 
 This version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF.</dc:description>
     <dc:rights xml:lang="en">This work is distributed under a Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/).</dc:rights>
diff --git a/docs/current/datacite.html b/docs/current/datacite.html
index f96bb17..acdfa97 100644
--- a/docs/current/datacite.html
+++ b/docs/current/datacite.html
@@ -29,7 +29,7 @@
 
 **License:** [Creative Commons Attribution 4.0 International](https://creativecommons.org/licenses/by/4.0/legalcode)
 
-**Website:** http://www.sparontologies.net/ontologies/datacite</span><div id="toc"><h2>Table of Content</h2><ol><li><a href="#introduction">Introduction</a></li><li><a href="#classes">Classes</a></li><li><a href="#objectproperties">Object Properties</a></li><li><a href="#namedindividuals">Named Individuals</a></li><li><a href="#annotationproperties">Annotation Properties</a></li><li><a href="#generalaxioms">General Axioms</a></li><li><a href="#namespacedeclarations">Namespace Declarations</a></li></ol></div><h2 id="introduction">Introduction</h2><span class="markdown">The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  
+**Website:** http://www.sparontologies.net/ontologies/datacite</span><div id="toc"><h2>Table of Content</h2><ol><li><a href="#introduction">Introduction</a></li><li><a href="#classes">Classes</a></li><li><a href="#objectproperties">Object Properties</a></li><li><a href="#namedindividuals">Named Individuals</a></li><li><a href="#annotationproperties">Annotation Properties</a></li><li><a href="#generalaxioms">General Axioms</a></li><li><a href="#namespacedeclarations">Namespace Declarations</a></li></ol></div><h2 id="introduction">Introduction</h2><span class="markdown">The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  
 
 This version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF.</span><p class="image"><object data="datacite.png" type="image/png"></object></p><div id="classes"><h2>Classes</h2><ul class="hlist"><li><a href="#d4e287" title="http://purl.org/spar/datacite/AgentIdentifier">agent identifier</a></li><li><a href="#d4e313" title="http://purl.org/spar/datacite/AgentIdentifierScheme">agent identifier scheme</a></li><li><a href="#d4e342" title="http://purl.org/spar/datacite/AlternateResourceIdentifier">alternate resource identifier</a></li><li><a href="#d4e357" title="http://purl.org/spar/datacite/DescriptionType">description type</a></li><li><a href="#d4e371" title="http://purl.org/spar/datacite/FunderIdentifier">funder identifier</a></li><li><a href="#d4e394" title="http://purl.org/spar/datacite/FunderIdentifierScheme">funder identifier scheme</a></li><li><a href="#d4e423" title="http://purl.org/spar/datacite/Identifier">identifier</a></li><li><a href="#d4e467" title="http://purl.org/spar/datacite/IdentifierScheme">identifier scheme</a></li><li><a href="#d4e478" title="http://purl.org/spar/datacite/MetadataScheme">metadata scheme</a></li><li><a href="#d4e493" title="http://purl.org/spar/datacite/OrganizationIdentifier">organization identifier</a></li><li><a href="#d4e517" title="http://purl.org/spar/datacite/OrganizationIdentifierScheme">organization identifier scheme</a></li><li><a href="#d4e546" title="http://purl.org/spar/datacite/PersonalIdentifier">personal identifier</a></li><li><a href="#d4e569" title="http://purl.org/spar/datacite/PersonalIdentifierScheme">personal identifier scheme</a></li><li><a href="#d4e599" title="http://purl.org/spar/datacite/PrimaryResourceIdentifier">primary resource identifier</a></li><li><a href="#d4e622" title="http://purl.org/spar/datacite/ResourceIdentifier">resource identifier</a></li><li><a href="#d4e645" title="http://purl.org/spar/datacite/ResourceIdentifierScheme">resource identifier scheme</a></li></ul><div id="d4e287" class="entity"><a name="http://purl.org/spar/datacite/AgentIdentifier"></a><h3>agent identifier<sup title="class" class="type-c">c</sup><span class="backlink"> back to <a href="#toc">ToC</a> or <a href="#classes">Class ToC</a></span></h3><p><strong>IRI:</strong> http://purl.org/spar/datacite/AgentIdentifier</p><div class="comment"><span class="markdown">An identifier that uniquely identities an individual agent, belonging to a particular identifier scheme specified by an individual within the class datacite:AgentIdentifierScheme (or any of its subclasses).</span></div><dl class="description"><dt>has super-classes</dt><dd><a href="#d4e423" title="http://purl.org/spar/datacite/Identifier">identifier</a><sup title="class" class="type-c">c</sup></dd><dd><a href="#d4e242" title="http://purl.org/spar/datacite/usesIdentifierScheme">uses identifier scheme</a><sup title="object property" class="type-op">op</sup> <span class="logic">only</span> <a href="#d4e287" title="http://purl.org/spar/datacite/AgentIdentifier">agent identifier</a><sup title="class" class="type-c">c</sup></dd><dt>has sub-classes</dt><dd><a href="#d4e371" title="http://purl.org/spar/datacite/FunderIdentifier">funder identifier</a><sup title="class" class="type-c">c</sup>, <a href="#d4e493" title="http://purl.org/spar/datacite/OrganizationIdentifier">organization identifier</a><sup title="class" class="type-c">c</sup>, <a href="#d4e546" title="http://purl.org/spar/datacite/PersonalIdentifier">personal identifier</a><sup title="class" class="type-c">c</sup></dd><dt>is disjoint with</dt><dd><a href="#d4e622" title="http://purl.org/spar/datacite/ResourceIdentifier">resource identifier</a><sup title="class" class="type-c">c</sup></dd></dl></div><div id="d4e313" class="entity"><a name="http://purl.org/spar/datacite/AgentIdentifierScheme"></a><h3>agent identifier scheme<sup title="class" class="type-c">c</sup><span class="backlink"> back to <a href="#toc">ToC</a> or <a href="#classes">Class ToC</a></span></h3><p><strong>IRI:</strong> http://purl.org/spar/datacite/AgentIdentifierScheme</p><div class="comment"><span class="markdown">The identifier scheme used to identify an agent. Individual schemes are defines as members of its sub-classes.</span></div><dl class="description"><dt>has super-classes</dt><dd><a href="#d4e467" title="http://purl.org/spar/datacite/IdentifierScheme">identifier scheme</a><sup title="class" class="type-c">c</sup></dd><dd><span class="logic">inverse</span> <a href="#d4e242" title="http://purl.org/spar/datacite/usesIdentifierScheme">uses identifier scheme</a><sup title="object property" class="type-op">op</sup> <span class="logic">some</span> <a href="#d4e287" title="http://purl.org/spar/datacite/AgentIdentifier">agent identifier</a><sup title="class" class="type-c">c</sup></dd><dt>has sub-classes</dt><dd><a href="#d4e394" title="http://purl.org/spar/datacite/FunderIdentifierScheme">funder identifier scheme</a><sup title="class" class="type-c">c</sup>, <a href="#d4e517" title="http://purl.org/spar/datacite/OrganizationIdentifierScheme">organization identifier scheme</a><sup title="class" class="type-c">c</sup>, <a href="#d4e569" title="http://purl.org/spar/datacite/PersonalIdentifierScheme">personal identifier scheme</a><sup title="class" class="type-c">c</sup></dd><dt>has members</dt><dd><a href="#d4e928" title="http://purl.org/spar/datacite/github">github</a><sup title="named individual" class="type-ni">ni</sup>, <a href="#d4e1123" title="http://purl.org/spar/datacite/lattes">lattes</a><sup title="named individual" class="type-ni">ni</sup>, <a href="#d4e1140" title="http://purl.org/spar/datacite/linkedin">linkedin</a><sup title="named individual" class="type-ni">ni</sup>, <a href="#d4e1401" title="http://purl.org/spar/datacite/orcid">orcid</a><sup title="named individual" class="type-ni">ni</sup>, <a href="#d4e1656" title="http://purl.org/spar/datacite/twitter">twitter</a><sup title="named individual" class="type-ni">ni</sup></dd></dl></div><div id="d4e342" class="entity"><a name="http://purl.org/spar/datacite/AlternateResourceIdentifier"></a><h3>alternate resource identifier<sup title="class" class="type-c">c</sup><span class="backlink"> back to <a href="#toc">ToC</a> or <a href="#classes">Class ToC</a></span></h3><p><strong>IRI:</strong> http://purl.org/spar/datacite/AlternateResourceIdentifier</p><div class="comment"><span class="markdown">An identifier other than a DOI that is used as an alternative identifier to uniquely identifies the primary resource that is the subject of the DataCite metadata record, belonging to a particular scheme such as ISBN specified by an individual that is a member of the class datacite:ResourceIdentifierScheme. </span></div><dl class="description"><dt>has super-classes</dt><dd><a href="#d4e622" title="http://purl.org/spar/datacite/ResourceIdentifier">resource identifier</a><sup title="class" class="type-c">c</sup></dd><dt>is disjoint with</dt><dd><a href="#d4e599" title="http://purl.org/spar/datacite/PrimaryResourceIdentifier">primary resource identifier</a><sup title="class" class="type-c">c</sup></dd></dl></div><div id="d4e357" class="entity"><a name="http://purl.org/spar/datacite/DescriptionType"></a><h3>description type<sup title="class" class="type-c">c</sup><span class="backlink"> back to <a href="#toc">ToC</a> or <a href="#classes">Class ToC</a></span></h3><p><strong>IRI:</strong> http://purl.org/spar/datacite/DescriptionType</p><div class="comment"><span class="markdown">This class permits classification of the type of description given to a resource described by the DataCite Metadata schema.  Individual members of the class conform to the five values allowed in the DataCite controlled list, namely: 
 
diff --git a/docs/current/datacite.json b/docs/current/datacite.json
index 599d2a8..64c1f5c 100644
--- a/docs/current/datacite.json
+++ b/docs/current/datacite.json
@@ -2742,7 +2742,7 @@
       },
       {
         "@language": "en",
-        "@value": "The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  \n\nThis version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF."
+        "@value": "The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  \n\nThis version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF."
       }
     ],
     "http://purl.org/dc/elements/1.1/rights": [
diff --git a/docs/current/datacite.nt b/docs/current/datacite.nt
index 2f3e52c..af98cbb 100644
--- a/docs/current/datacite.nt
+++ b/docs/current/datacite.nt
@@ -12,7 +12,7 @@ _:N153bcf6575e04436adc29fe9fe11db73 <http://www.w3.org/2002/07/owl#onProperty> <
 _:N8209b50abbdc41d0a0c4a1d17cfb4aea <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2002/07/owl#Restriction> .
 <http://purl.org/spar/datacite/methods> <http://www.w3.org/2000/01/rdf-schema#label> "methods"@en .
 <http://purl.org/spar/datacite/usesMetadataScheme> <http://www.w3.org/2000/01/rdf-schema#range> <http://purl.org/spar/datacite/MetadataScheme> .
-<http://purl.org/spar/datacite> <http://purl.org/dc/elements/1.1/description> "The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  \n\nThis version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF."@en .
+<http://purl.org/spar/datacite> <http://purl.org/dc/elements/1.1/description> "The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  \n\nThis version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF."@en .
 <http://purl.org/spar/datacite/PersonalIdentifierScheme> <http://www.w3.org/2000/01/rdf-schema#subClassOf> <http://purl.org/spar/datacite/AgentIdentifierScheme> .
 <http://purl.org/spar/datacite/purl> <http://www.w3.org/2000/01/rdf-schema#comment> "Persistent Uniform Resource Locator"@en .
 <http://purl.org/spar/datacite/PersonalIdentifierScheme> <http://www.w3.org/2000/01/rdf-schema#subClassOf> _:N20c91e7f466142dc8820d76c988f7a0c .
diff --git a/docs/current/datacite.owl b/docs/current/datacite.owl
index 8813008..8cb2871 100644
--- a/docs/current/datacite.owl
+++ b/docs/current/datacite.owl
@@ -27,7 +27,7 @@
         <dc:creator rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Silvio Peroni</dc:creator>
         <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#string">2022-09-15</dc:date>
         <dc:description rdf:resource="http://purl.org/spar/datacite/datacite.png"/>
-        <dc:description xml:lang="en">The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  
+        <dc:description xml:lang="en">The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  
 
 This version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF.</dc:description>
         <dc:rights xml:lang="en">This work is distributed under a Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/).</dc:rights>
diff --git a/docs/current/datacite.ttl b/docs/current/datacite.ttl
index 4a13799..0247b24 100644
--- a/docs/current/datacite.ttl
+++ b/docs/current/datacite.ttl
@@ -31,7 +31,7 @@ dc:title a owl:AnnotationProperty .
         "Silvio Peroni"^^xsd:string ;
     dc:date "2022-09-15"^^xsd:string ;
     dc:description :datacite.png,
-        """The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  
+        """The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  
 
 This version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF."""@en ;
     dc:rights "This work is distributed under a Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/)."@en ;
diff --git a/docs/current/datacite.xml b/docs/current/datacite.xml
index a3d9b07..1690bac 100644
--- a/docs/current/datacite.xml
+++ b/docs/current/datacite.xml
@@ -102,7 +102,7 @@
     <dc:creator rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Silvio Peroni</dc:creator>
     <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#string">2022-09-15</dc:date>
     <dc:description rdf:resource="http://purl.org/spar/datacite/datacite.png"/>
-    <dc:description xml:lang="en">The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf) to be described in RDF.  
+    <dc:description xml:lang="en">The DataCite Ontology is an ontology written in OWL 2 DL to enable the metadata properties of the [DataCite Metadata Kernel Specification version 3.1](https://schema.datacite.org/meta/kernel-3.1/index.html) to be described in RDF.  
 
 This version of the DataCite Ontology has been completely revised and significantly expanded to permit accurate mapping of this new version of the DataCite Metadata Kernel Specification to RDF.</dc:description>
     <dc:rights xml:lang="en">This work is distributed under a Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/).</dc:rights>
diff --git a/xslt/xml2rdf.xslt b/xslt/xml2rdf.xslt
index 69cb523..2de6aad 100644
--- a/xslt/xml2rdf.xslt
+++ b/xslt/xml2rdf.xslt
@@ -512,7 +512,7 @@
 			<relation type=""><dct:relation/></relation>
 		</xsl:variable>
 		<!--
-		see https://www.datacite.org/sites/default/files/document/DataCite-MetadataSchema_V31_Final_8-24-2015_0.pdf
+		see https://schema.datacite.org/meta/kernel-3.1/index.html
 		@relatedIdentifierType - all have an equivalent (lower-case) insividual in the Datacite ontology.
 		Values with * are (resolved to) urls.
 			ARK