Z. Cherif, A. Nait-Ali, J. Motsch, and M. Krebs. Proceedings of the19th IEEE Instrumentation and Measurement Technology Conference (IMTC 2002), Anchorage, AK, USA, 2, page 1029--1033. (2002)
A. Neto, R. Fortes, A. Assis, and J. Anacleto. Proceedings of the 27th ACM international conference on Design of communication, page 81--88. New York, NY, USA, ACM, (2009)