E. Oren, M. Völkel, J. Breslin, and S. Decker. Database and Expert Systems Applications, 4080/2006, page 509-518. Springer Berlin / Heidelberg, (September 2006)
M. Krötzsch, D. Vrandecic, and M. Völkel. Proceedings of Wikimania 2005 - The First International Wikimedia Conference, Wikimedia Foundation, (July 2005)
S. Auer, S. Dietzold, and T. Riechert. Proceedings of 5th International Semantic Web Conference, Nov 5th-9th, Athens, GA, USA, LNCS 4273, Berlin Heidelberg, Springer-Verlag, (2006)