1. Contributions to the Theory of Logic Programming;Apt;J. Assoc. Comput. Mach.,1982
2. Programming with Full First-Order Logic;Bowen,1982
3. Using Rewriting Rules for Connection Graphs to Prove Theorems;Chang;Artificial Intelligence,1979
4. Negation as Failure;Clark,1978
5. Intuitionistic Logic;Fitting,1969