1. Lect Notes Comput Sci;S. Agerholm,1997
2. B. Barras, S. Boutin, C. Comes, J. Courant, Y. Coscoy, D. Delahaye, D. de Rauglaudre, J.-C. Filliâtre, E. Giménez, H. Herbelin, G. Huet, H. Laulhére, P. Loiseleur, C. Muñoz, C. Murthy, C. Parent-Vigouroux, C. Paulin-Mohring, A. Saïbi, and B. Werner. The Coq Proof Assistant User’s Guide. Version 6.3.1, December 1999.
3. Lect Notes Comput Sci;G. Barthe,2001
4. S. Bensalem, V. Ganesh, Y. Lakhnech, C. Muñoz, S. Owre, H. Rueß, J. Rushby, V. Rusu, H. Saïdi, N. Shankar, E. Singerman, and A. Tiwari. An overview of SAL. In Proceedings of NASA’s Workshop on Formal Methods, 2000.
5. J. Bergstra and J. W. Klop. Conditional rewrite rules: confluence and termination. Journal of Computer and System Sciences, 32:323–362, 1986.