A. Arasu, and H. Garcia-Molina. Proceedings of the 2003 ACM SIGMOD International Conference on Management of Data, San Diego, California, USA, June 9-12, 2003, page 337-348. ACM, (2003)
G. Gottlob, C. Koch, R. Baumgartner, M. Herzog, and S. Flesca. Proceedings of the Twenty-third ACM SIGACT-SIGMOD-SIGART Symposium
on Principles of Database Systems, June 14-16, 2004, Paris, France, page 1-12. ACM, (2004)
S. Simoff. Proceedings of the MDKM/KDD2000 Workshop on
Multimedia Data Mining, page 104--109. www.cs.ualberta.ca/~zaiane/mdm\_kdd2000/mdm00-15.pdf, (2000)