[作者]  Enrique H. Ruspini
[篇名] Numerical methods for fuzzy clustering
[卷期] Information Sciences , Volume 2, Issue 3, July 1970, Pages 319-350
[链接] http://www.sciencedirect.com/science/article/pii/S0020025570800561


[作者]  Michael P. Windham
[篇名] Geometrical fuzzy clustering algorithms
[卷期]  Fuzzy Sets and Systems, Volume 10, Issues 1-3, 1983, Pages 271-279
[链接] http://www.sciencedirect.com/science/article/pii/S0165011483801201