1. Pattern Recognition with Fuzzy Objective Function Algorithm;Bezdek,1981
2. Algorithms for clustering data;Jain,1988
3. Neuro-Fuzzy and Soft Computing;Jang,1997
4. Approximate clustering via the mountain method;Yager;IEEE Transactions on Systems, Man, and Cybernetics,1994
5. Essentials of Fuzzy Modeling and Control;Yager,1994