1. Bonner, A.J.: Hypothetical datalog: Complexity and expressibility. Theoret- ical Computer Science 76, 3–51 (1990)
2. Brisset, P., Ridoux, O.: The compilation of λProlog and its execution with MALI. Rapport de recherche 1831, INRIA (1993)
3. Lecture Notes in Computer Science;M. Codish,1994
4. Codish, M., Demoen, B.: Analyzing logic programs using Prop-ositional logic programs and a magic wand. J. Logic Programming 25(3), 249–274 (1995)
5. Cortesi, A., Filé, G., Winsborough, W.: Prop revisited: Propositional for- mula as abstract domain for groundness analysis. In: SLCS, vol. CH3025-4, pp. 322–327. IEEE, Los Alamitos (1991)