1. Groupes et Anneaux Réticulés;Bigard,1977
2. Lattice Theory;Birkhoff,1968
3. Algebraic analysis of many valued logics;Chang;Trans. Amer. Math. Soc.,1958
4. Algebraic Foundations of Many-Valued Reasoning;Cignoli,2000
5. Product MV-algebras;Di Nola;Multiple-Valued Logics,2001