M. Penagarikano, and G. Bordel. Machine Learning for Signal Processing, 2004. Proceedings of the 2004 14th IEEE Signal Processing Society Workshop, page 305 -314. (29 2004-oct. 1 2004)
X. Liu, L. Ren, F. Yuan, and B. Yang. Environmental Science and Information Application Technology, 2009. ESIAT 2009. International Conference on, 2, page 23 -26. (July 2009)