1. Cluster analysis by optimal decomposition of induced fuzzy sets;Backer,1978
2. Pattern Recognition with Fuzzy Objective Function Algorithms;Bezdek,1981
3. Rapid Interpretation of EKG's;Dubin,1981
4. Fuzzy relative of the Isodata process and its use in detecting compact, well separated clusters;Dunn;J. Cybern.,1974
5. Fuzzy clustering with a fuzzy covariance matrix;Gustafson,1979