1. Peter B. Andrews. An Introduction to Mathematical Logic and Type Theory. Academic Press, 1986.
2. Melvin C. Fitting. First-order modal tableaux. Journal of Automated Reasoning, 4:191–213, 1988.
3. Melvin C. Fitting. First-Order Logic and Automated Theorem Proving. Springer, New York, 1990.
4. Reiner Hähnle. Automated Theorem Proving in Multiple-Valued Logics. Oxford University Press, forthcoming, 1993.
5. Reiner Hähnle, Bernhard Beckert, Stefan Gerberding, and Werner Kernig. The Many-Valued Tableau-Based Theorem Prover 3TAP. IWBS Report 227, Wissenschaftliches Zentrum Heidelberg, IWBS, IBM Deutschland, July 1992.