1. Cardinality restrictions on concepts;Baader,1994
2. KRIS: Knowledge Representation and Inference System;Baader;SIGART Bull.,1991
3. Representing default rules in possibilistic logic;Benferhat,1992
4. Living with classic: When and how to use a kl-one-like language;Brachman,1991
5. Decidable reasoning in terminological knowledge representation systems;Buchheit,1993