1. Associatively tied implications;Abdel-Hamid;Fuzzy Sets Syst.,2003
2. Concept lattices and order in fuzzy logic;Bělohlávek;Ann. Pure Appl. Logic,2004
3. C. Damásio, J. Medina, M. Ojeda-Aciego, Sorted multi-adjoint logic programs: termination results and applications, in: Logics in Artificial Intelligence, JELIA’04, Lecture Notes in Artificial Intelligence, vol. 3229, 2004, pp. 252–265.
4. C.V. Damásio, L.M. Pereira, Monotonic and residuated logic programs, in: Symbolic and Quantitative Approaches to Reasoning with Uncertainty, ECSQARU’01, Lecture Notes in Artificial Intelligence, vol. 2143, 2001, pp. 748–759.
5. Introduction to Lattices and Order;Davey,2002