1. Fuzzy equational logic;Belohlavek;Arch. Math. Log.,2002
2. Fuzzy Relational Systems: Foundations and Principles;Belohlavek,2002
3. Birkhoff variety theorem and fuzzy logic;Belohlavek;Arch. Math. Log.,2003
4. Algebras with fuzzy equalities;Belohlavek,2003
5. Fuzzy Equational Logic;Belohlavek,2005