1. Correspondence theory;van Benthem,1984
2. Modal Logic;Blackburn,2001
3. Fuzzy Relational Systems: Foundations and Principles;Bělohlávek,2002
4. Bisimulations for fuzzy-transition systems;Cao;IEEE Trans. Fuzzy Syst.,2011
5. A behavioral distance for fuzzy-transition systems;Cao;IEEE Trans. Fuzzy Syst.,2013