1. Operations research and artificial intelligence cooperation to solve scheduling problems: The Opal and Oscar Systems;Badie,1990
2. OPAL: A multi-knowledge-based system for industrial job-shop scheduling;Bensana;International Journal of Production Research,1988
3. A knowledge-based system for dynamic manufacturing replanning;Chiodini,1986
4. Revising the BB1 basic control loop to control the behavior of knowledge sources;Collinot,1989
5. Integer programming vs. Expert Systems: An Experimental Comparison;Dhar;Communications of the ACM,1990