1. On logic program semantics with two kinds of negation;Alferes,1992
2. Generalized negation as failure and semantics of normal disjunctive logic programs;Baral,1992
3. Dualities between alternative semantics for logic programming and nonmonotonic reasoning (Extended abstract);Baral,1991
4. Stable and extension class theory for logic programs and default logics;Baral;J. Automat. Reason.,1992
5. Default consequences relations as a logical framework for logic programs;Bochman,1995