A. Ankolekar, M. Krötzsch, T. Tran, and D. Vrandecic. WWW '07: Proceedings of the 16th international conference on World Wide Web, page 825--834. New York, NY, USA, ACM Press, (2007)
M. Noll, and C. Meinel. Proceedings of the 6th International Semantic Web Conference and 2nd Asian Semantic Web Conference (ISWC/ASWC2007), Busan, South Korea, volume 4825 of LNCS, page 365--378. Berlin, Heidelberg, Springer Verlag, (November 2007)
P. Haase, M. Ehrig, A. Hotho, and B. Schnizler. Peer-to-Peer and SemanticWeb, Decentralized Management and Exchange of Knowledge and Information, Springer, (2006)