1. 1) BENITEZ J. M. An empirical procedure to obtain fuzzy rules using neural networkss. Proc.6th IFSA Congress, Brazil. (1995) p.663-666.
2. 2) BENITEZ J. M. Neural methods for obtaining fuzzy rules. Math. Soft Computing. (1996) vol.3, p.371-382.
3. 3) BENITEZ J. M. New aspects on extraction of fuzzy rules using neural networks. Math. Soft Computing. (1998) vol.5, p.333-343.
4. 4) BEZDEK J. C. Numerical taxonomy with fuzzy sets. J. Math. Biol.. (1974) vol.1, p.57-71.
5. 5) BEZDEK J. C. Cluster validity with fuzzy sets. J. Cyber.. (1974) vol.3, p.58-72.