--- a/dcat/index.html	Thu May 30 10:38:13 2013 +0100
+++ b/dcat/index.html	Thu May 30 11:00:53 2013 +0100
@@ -456,7 +456,12 @@
 <table class="definition">
   <thead><tr><th>RDF Class:</th><th><a href="http://www.w3.org/ns/dcat#CatalogRecord">dcat:CatalogRecord</a></th></tr></thead>
   <tbody>
-    <tr><td class="prop">Usage note</td><td>This class is optional and not all catalogs will use it. It exists for catalogs where a distinction is made between metadata about a <em>dataset</em> and metadata about the <em>dataset's entry in the catalog</em>. For example, the <i>publication date</i> property of the <i>dataset</i> reflects the date when the information was originally made available by the publishing agency, while the publication date of the <i>catalog record</i> is the date when the dataset was added to the catalog. In cases where both dates differ, or where only the latter is known, the <em>publication date</em> should only be specified for the catalog record.</td></tr>
+    <tr><td class="prop">Usage note</td><td>This class is optional and not all catalogs will use it. It exists for catalogs where a distinction is made between metadata about 
+    a <em>dataset</em> and metadata about the <em>dataset's entry in the catalog</em>. For example, the <i>publication date</i> property of the <i>dataset</i> reflects 
+    the date when the information was originally made available by the publishing agency, while the publication date of the <i>catalog record</i> is the date when the dataset was added to the catalog. 
+    In cases where both dates differ, or where only the latter is known, the <em>publication date</em> should only be specified for the catalog record.
+    Notice that the W3C PROV Ontology [[PROV-O]] allows describing further provenance information such as the details of the process and the agent involved in a particualr change to a dataset.
+    </td></tr>
     <tr><td class="prop">See also</td><td><a href="#Class:_Dataset">Dataset</a></td></tr>
   </tbody>
 </table>

--- a/dcat/respec-ref.js	Thu May 30 10:38:13 2013 +0100
+++ b/dcat/respec-ref.js	Thu May 30 11:00:53 2013 +0100
@@ -14,6 +14,7 @@
                 berjon.biblio["XHTML-RDFA-PROFILE"] = "<cite><a href=\"http://www.w3.org/profile/html-rdfa-1.1\">HTML+RDFa Core Default Profile</a></cite>, I. Herman, W3C RDF Web Applications Working Group 24 May 2011. URL: http://www.w3.org/profile/html-rdfa-1.1";
                 berjon.biblio["RFC2616"] = "<cite><a href=\"http://www.w3.org/Protocols/rfc2616/rfc2616.html\">Hypertext Transfer Protocol -- HTTP/1.1</a></cite>, R. Fielding; et al. June 1999. Internet RFC 2616. URL: http://www.w3.org/Protocols/rfc2616/rfc2616.html.";
 				berjon.biblio["VCARD-GUIDE"] =  "<cite><a href=\"http://www.w3.org/TR/vcard-rdf/\">Representing vCard Objects in RDF</a></cite>file://localhost/Users/fadi/development/Spec/gld/dcat/index.html";
+				berjon.biblio["PROV-O"] =  "<cite><a href=\"http://www.w3.org/TR/prov-o/\">PROV-O: The PROV Ontology</a></cite>T. Lebo, S. Sahoo, and D. McGuinness, URL: http://www.w3.org/TR/2013/REC-prov-o-20130430/";
 
                 // process the document before anything else is done
                 var refs = document.querySelectorAll('adef') ;

--- a/respec/gld-bib.js	Thu May 30 10:38:13 2013 +0100
+++ b/respec/gld-bib.js	Thu May 30 11:00:53 2013 +0100
@@ -64,6 +64,15 @@
     	"title": "Representing vCard Objects in RDF",
     	"date": "January 2010" ,
     	"status": "W3C Member Sumission 20 January 2010"
+    },
+    "PROV-O":{
+      "authors":[
+      "T. Lebo", "S. Sahoo" ,"D. McGuinness"
+      ],
+      "href":"http://www.w3.org/TR/prov-o/",
+      "title":"PROV-O: The PROV Ontology",
+      "date":"April 2013" ,
+      "status":"W3C Recommendation"
     }
 
 }