1. Pattern Classification;Duda,2012
2. Some methods for classification and analysis of multivariate observations;Macqueen,1967
3. D. Arthur, S. Vassilvitskii, k-means++:the advantages of careful seeding, in: Eighteenth Acm-Siam Symposium on Discrete Algorithms, pp. 1027–1035, 2007.
4. Clarans: A method for clustering objects for spatial data mining;Ng;IEEE Trans. Knowl. Data Eng.,2002
5. A new approach to clustering;Ruspini;Inf. Control,1969