1. Fuzzy power sets and fuzzy implication operators;Bandler;Fuzzy Sets and Systems,1980
2. Decision-making in a fuzzy environment;Bellman;Manage. Sci.,1970
3. Inconsistency management and prioritized syntax-based entailment;Benferhat,1993
4. Preferred subtheories: an extended logical framework for default reasoning;Brewka,1989
5. Management of preferences in assumption-based reasoning;Cayrol,1993