J. Broekstra, A. Kampman, and F. van Harmelen. The Semantic Web - ISWC 2002. First International Semantic Web Conference, Sardinia, Italy, June 9-12, 2002, Proceedings, 2342, page 54-68. (2002)
Y. An, J. Geller, Y. Wu, and S. Chun. DEXA '07: Proceedings of the 18th International Conference on Database and Expert Systems Applications, page 470--474. Washington, DC, USA, IEEE Computer Society, (2007)
N. Pahal, N. Chauhan, and A. Sharma. Wireless Communication and Sensor Networks, 2007. WCSN '07. Third International Conference on, page 121-124. (2007)
M. Shokouhi, P. Chubak, and Z. Raeesy. Information Technology: Coding and Computing, 2005. ITCC 2005. International Conference on, 2, page 503- 508 Vol. 2. (2005)