J. Park, M. Chen, and P. Yu. Proceedings of the 1995 ACM SIGMOD international conference on Management
of Data (SIGMOD'95), page 175--186. ACM Press, (May 1995)
J. Han, Y. Cai, and N. Cercone. Proceedings of the 18th international conference on Very Large Data
Bases (VLDB'92), page 547--559. Morgan Kaufmann, (August 1992)
R. Srikant, and R. Agrawal. Proceedings of the 1996 ACM SIGMOD international conference on Management
of Data (SIGMOD'96), page 1--12. ACM Press, (June 1996)
R. Srikant, Q. Vu, and R. Agrawal. Proceedings of the 3rd international conference on Knowledge Discovery
and Data mining (KDD'97), page 67--73. AAAI Press, (August 1997)
J. Wang, G. Marr, B. Shapiro, D. Shasha, and K. Zhang. Proceedings of the 1994 ACM SIGMOD international conference on Management
of Data (SIGMOD'94), page 115--125. ACM Press, (May 1994)
K. Waiyamai. Actes du 16�me congr�s sur l'Informatique des Organisations et Syst�mes
d'Information et de D�cision (INFORSID'98), page 437--455. (May 1998)
M. Grahl, A. Hotho, and G. Stumme. Workshop Proceedings of Lernen -- Wissensentdeckung -- Adaptivität (LWA 2007), page 50-54. Martin-Luther-Universität Halle-Wittenberg, (September 2007)