1. Lecture Notes in Artificial Intelligence;J. Anderson,2004
2. Lecture Notes in Artificial Intelligence;J. Baltes,2002
3. Lecture Notes in Artificial Intelligence;D. Cameron,2004
4. (Accessed February 2, 2006),
http://www.cs.cmu.edu/~robosoccer/legged/
5. Dempster, A.P., Laird, N.M., Rubin, D.B.: Maximum likelihood from incomplete data via the EM algorithm. Journal of the Royal Statistical Society, Series B 34, 1–38 (1977)