1. Fuzzy Relational Systems: Foundations and Principles;Bělohlávek,2002
2. Monotone set-functions-based integrals;Benvenuti,2002
3. Triangular Norm Based Measures and Games with Fuzzy Coalitions;Butnariu,1993
4. Triangular norm-based measures;Butnariu,2002
5. Algebraic foundations of many-valued reasoning;Cignoli,2000