1. Embedding defaults into terminological knowledge representation formalisms;Baader,1992
2. Hierarchical knowledge bases and efficient disjunctive reasoning;Borgida,1989
3. The future of knowledge representation;Brachman,1990
4. On the complexity of model finding for nonmonotonic propositional logics;Cadoli,1992
5. Semantical and computational aspects of Horn approximations;Cadoli,1993