Tennis, Joseph T.2017-01-192017-01-192005Joseph T. Tennis. (2005). "SKOS and the Ontogenesis of Vocabularies." In International Conference on Dublin Core and Metadata Applications: Vocabularies in Practice. (Madrid, Spain: Universidad Carlos III de Madrid): 275-278.http://hdl.handle.net/1773/37958The paper suggests extensions to SKOS Core to make explicit where concepts in a knowledge organization system have changed from one version of the system to another.pdfArticle