1. Unification theory;Baader,2001
2. Modal Logic;Chagrov,1996
3. Weakly implicative (fuzzy) logics I: Basic properties;Cintula;Archive for Mathematical Logic,2006
4. Structural completeness in fuzzy logics;Cintula;Notre Dame Journal of Formal Logic,2009
5. On structurally complete superintuitionistic logics;Citkin;Soviet Mathematics Doklady,1978