M. Sintek, und S. Decker. ISWC '02: Proceedings of the First International Semantic Web Conference on The Semantic Web, Seite 364--378. London, UK, Springer-Verlag, (2002)
H. Decker, und D. Martinenghi. TDM, Volume WP06-01 von CTIT Workshop Proceedings Series, Seite 41-48. Centre for Telematics and Information Technology (CTIT), University of Twente, Enschede, The Netherlands, (2006)