1. A terminological knowledge representation system with complete inference algorithm;Baader,1991
2. Embedding defaults into terminological knowledge representation formalisms;Baader,1992
3. Epistemic queries in CLASSIC;Becker,1994
4. On the relative expressiveness of description logics and predicate logics;Borgida;Artificial Intelligence,1996
5. CLASSIC: a structural data model for objects;Borgida,1989