S. Auer, S. Dietzold, and T. Riechert. ISWC 2006, 5th International Semantic Web Conference, Nov 5th-9th, Athens, GA, USA, page 736--749. Berlin, Springer-Verlag, (2006)
M. Buffa, and F. Gandon. WikiSym'06: Proceedings of the international symposium on Symposium on Wikis, page 69--78. New York, NY, USA, ACM Press, (2006)