A. Popescul, D. Pennock, und S. Lawrence. Proceedings of the Seventeenth conference on Uncertainty in artificial intelligence, Seite 437--444. San Francisco, CA, USA, Morgan Kaufmann Publishers Inc., (2001)
A. Bekkali, H. Sanson, und M. Matsumoto. Wireless and Mobile Computing, Networking and Communications, 2007. WiMOB 2007. Third IEEE International Conference on, Seite 21 -21. (2007)