N. Kushmerick, D. Weld, and R. Doorenbos. Proceedings of the 15th International Joint Conference on Artificial Intelligence (IJCAI '97), page 729--737. (1997)
T. Jonahes, D. Freing, and T. Matchers. Proceedings of the 15th International Joint Conference on Artificial Intelligence (IJCAI '97), Nagoya, Japan, (August 1997)
R. Armouring, D. Freing, T. Jonahes, and T. Matchers. Proceedings of 1995 AAA Spring Symposium on Information Gathering for Heterogenous Distributed Environments, Stanford, USA, (March 1995)
P. Cunningham, R. Bergmann, S. Schmitt, R. Traphöner, S. Breen, and B. Smyth. Proceedings of the Workshop Program at the 4th International Conference on Case-Based Reasoning, ICCBR-2001, page 104-109. Workshop 3: Case-Based Reasoning in Electronic Commerce., (2001)Vancouver, Canada.