1. What is a logic?;Mossakowski,2007
2. Algebraic Foundations of Many-Valued Reasoning;Cignoli,2000
3. Foundations of Set Theory [by] Abraham A. Fraenkel, Yehoshua Bar-Hillel [and] Azriel Levy. With the Collaboration of Dirk van Dalen. –;Fraenkel,1973
4. Many-Valued Logics;Bolc,1992
5. Many-Valued Logics 2;Bolc,2003