B. Brandherm, J. Haupert, A. Kröner, M. Schmitz, und F. Lehmann. PerCom 2010 Workshops: Proceedings of the 8th Annual IEEE International Conference on Pervasive Computing and Communications Workshops, Mannheim, Germany, Seite 768-771. (2010)
S. Auer, und J. Lehmann. The Semantic Web: Research and Applications, 4th European Semantic Web Conference, ESWC 2007, Innsbruck, Austria, Volume 4519 von Lecture Notes in Computer Science, Springer, Berlin, (2007)