Thomas F. La Porta Christoph Lindemann Elizabeth M. Belding-Royer Songwu Lu Proceedings of the 11th Annual International Conference on Mobile Computing and Networking, MOBICOM 2005, Cologne, Germany, August 28 - September 2, 2005 MOBICOM ACM 2005 db/conf/mobicom/mobicom2005.html 1-59593-020-5