1. Lecture Notes in Computer Science;L. Candillier,2006
2. Lecture Notes in Computer Science;L. Candillier,2005
3. Celeux, G., Diday, E., Govaert, G., Lechevallier, Y., Ralambondrainy, H.: Classification Automatique des Données, Environnement statistique et informatique. Dunod informatique, Bordas, Paris, France (1989)
4. Lecture Notes in Computer Science;G. Costa,2004
5. Lecture Notes in Computer Science;T. Dalamagas,2004