C. Jian nan, Z. Peng yi, Z. Si yi, Z. Chuang, and H. Ying. WRI Global Congress on Intelligent Systems (GCIS '09), Xiamen, China, 2, page 133--138. Los Alamitos, CA, IEEE Computer Society, (2009)
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)
D. Sonntag, and M. Möller. Proceedings of the Sixth International Conference on Intelligent Environments (IE 2010), Kuala Lumpur, Malaysia, page 84--89. Los Alamitos, CA, IEEE Computer Society CPS, (2010)
S. Seneff, R. Lau, and J. Polifroni. Proceedings of the Sixth European Conference on Speech Communication and Technology (Eurospeech'99), Budapest, Hungary, page 1271--1274. (1999)