"adms:Identifier" . . . . . "Identifier" . "This class is based on the UN/CEFACT \n Identifier complex type defined in See Section 5.8 of Core Components Data Type Catalogue Version 3.1 (http://www.unece.org/fileadmin/DAM/cefact/codesfortrade/CCTS/CCTS-DTCatalogueVersion3p1.pdf)\n In RDF this is expressed using the following properties:\n - the content string should be provided using skos:notation, datatyped with the identifier scheme (inclduing the version number if appropriate);\n - use dcterms:creator to link to a class describing the agency that manages the identifier scheme or adms:schemaAgency to provide the name as a literal.\n Although not part of the ADMS conceptual model, it may be useful to provide further properties to the Identifier class such as\n dcterms:created to provide the date on which the identifier was issued." .