1. Pattern classification based on fuzzy relation;Tamura;IEEE Trans. Systems Man Cybernet,1971
2. Objective classification of synoptic situation by fuzzy clustering;Guofan,1980
3. Fuzzy partition of weather processes;Hongxing;Kexue Tongbao,1980
4. Objective classification of 500 mb contours in early summer by cluster analysis;Hongji,1981
5. Coalition analysis with fuzzy sets;Spillman;Kybernetics,1979