P. Haase, A. Hotho, L. Schmidt-Thieme, und Y. Sure. The Semantic Web: Research and Applications, Volume 3532 von Lecture Notes in Computer Science, Seite 486--499. Berlin/Heidelberg, Springer, (2005)
P. Haase, M. Ehrig, A. Hotho, und B. Schnizler. Peer-to-Peer and SemanticWeb, Decentralized Management and Exchange of Knowledge and Information, Springer, (2006)