1. A Review of Industrial Case-Based Reasoning Tools;Althoff,1995
2. R. Bergmann, W. Wilke, I. Vollrath, W. Stefan, Integrating general knowledge with object-oriented case representation and reasoning, in: Proceedings of the Fourth German Workshop on CBR, 1996.
3. B. Dı́az-Agudo, P.A. González-Calero, An Architecture For Knowledge Intensive CBR Systems, in: Proceedings of the Fifth European Workshop on CBR (EWCBR’00) 2000.
4. R. Mac Gregor, R. Bates, The Loom Knowledge Representation Language, ISI Reprint Series, ISI/RS-87-188, University of Southern California, 1987.