G. Webb, S. Butler, and D. Newlands. Proceedings of The Ninth ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD-2003), page 256-265. New York, The Association for Computing Machinery, (2003)
G. Webb, and S. Zhang. Proceedings of the First International NAISO Congress on Autonomous Intelligent Systems (ICAIS 2002), Canada/The Netherlands, NAISO Academic Press, (2002)
G. Webb. Proceedings of the Seventh ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD-2001)short paper, page 383-388. New York, The Association for Computing Machinery, (2001)
G. Webb. Proceedings of the Sixth ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD-2000), page 99-107. New York, The Association for Computing Machinery, (2000)