1. Thierry Boy de la Tour. An Optimality Result for Clause Form Translation. Journal of Symbolic Computation, 14:283–301, 1992.
2. Chin-Liang Chang and Richard Char-Tung Lee. Symbolic Logic and Mechanical Theorem Proving. Computer Science and Applied Mathematics. Academic Press, 1973.
3. Li Dafa. The Formulation of the Halting Problem is Not Suitable for Describing the Halting Problem. Association for Automated Reasoning Newsletter, 27:1–7, 1994.
4. Ingo Dahn, J. Gehne, Thomas Honigmann, and Andreas Wolf. Integration of Automated and Interactive Theorem Proving in ILF. In Proceedings of the 14th International Conference on Automated Deduction, CADE-14, volume 1249 of LNAI,pages 57–60, Townsville, Australia, 1997. Springer.
5. Elmar Eder. Relative Complexities of First Order Calculi. Artificial Intelligence. Vieweg, 1992.