1. M. Benaim, On functional approximation with normalized Gaussian units, Neural Comput. 6 (1994).
2. Neural networks for pattern recognition;Bishop,1995
3. C. Bishop M. Svensen, C. Williams, GTM: a principled alternative to the Self Organizing Map, ICANN 96.
4. G. Celeux, J. Diebolt, Reconnaissance de mélange de densité et classification, un algorithme d’apprentissage probabiliste: l’algorithme SEM, Report INRIA, 1984.
5. A.P. Dempster, N.M. Laird, D. Rubin, Maximum likelihood from incomplete data via the EM algorithm, J. Roy. Statist. Soc. B 39 (1977) 1–38.