J. Sander, X. Qin, Z. Lu, N. Niu, and A. Kovarsky. Proc. of 7th Pacific-Asia Conf. of Advances in Knowledge Discovery and Data Mining, PAKDD 2003, Proceedings, page 75-87. Springer, (2003)
R. Agrawal, J. Gehrke, D. Gunopulos, and P. Raghavan. SIGMOD '98: Proceedings of the 1998 ACM SIGMOD International Conference on Management of Data, page 94-105. ACM Press, (1998)
T. Zhang, R. Ramakrishnan, and M. Livny. SIGMOD '96: Proceedings of the 1996 ACM SIGMOD International Conference on Management of Data, page 103-114. ACM Press, (1996)
M. Halkidi, Y. Batistakis, and M. Vazirgiannis. Proceedings of the 13th International Conference on Scientific and Statistical Database Management, page 3-22. IEEE Computer Society, (2001)