1. Cluster Analysis by Optimal Decomposition of Induced Fuzzy Sets;Backer,1978
2. Cluster validity with fuzzysets;Bezdek;J. Cybernet.,1974
3. Mathematical models for systematics and taxonomy;Bezdek,1975
4. J.C. Bezdek, M.P. Windham and R. Ehrlich, Statistical parameters of cluster validity functionals, to appear.
5. Classification automatique séquentielle pour grands tableaux;Diday;Rev. Française Aut. Info. R.O.,1975