UML for ontology development. - Paul A. Kogut; Stephen Cranefield; Lewis Hart; Mark Dutra; Kenneth Baclawski; Mieczyslaw M. Kokar; Jeffrey E. Smith (Knowl. Eng. Rev., 2002)

Usage Scenarios and Goals for Ontology Definition Metamodel. - Lewis Hart; Patrick Emery; Robert M. Colomb; Kerry Raymond; Dan Chang; Yiming Ye; Elisa F. Kendall; Mark Dutra (WISE, 2004)

Towards a Graphical Notation for OWL 2. - Elisa F. Kendall; Roy Bell; Roger Burkhart; Mark Dutra; Evan K. Wallace (OWLED, 2009)