1. Equations en Mots Technical Report 7.87;Abdulrab,1987
2. Orderings for equational proofs;Bachmair,1986
3. Varieties of if then else;Bloom;SIAM J. Comput.,1983
4. On equational theories, unification and decidability;Bürckert,1987
5. La complétion unificationnelle;Doggaz;Rapport de DEA de l'Université de Nancy I,1987