CONF bourlard-icann.97/IDIAP State-of-the-Art and Recent Progress in Hybrid HMM/ANN Speech Recognition Bourlard, Hervé Gerstner, W. Ed. Germond, A. Ed. Hasler, M. Ed. Nicoud, J. -D. Ed. Proceedings of the International Conference on Artificial Neural Networks (ICANN'97) Lecture Notes in Computer Science 1327 875-884 1997 Springer-Verlag