1. A modal logic for data analysis;Balbiani,1996
2. Axiomatization of logics based on Kripke models with relative accessibility relations;Balbiani,1997
3. Correspondence theory;van Benthem,1984
4. Decidability by nitrations for graded normal logics (graded modalities V);Cerrato;Studia Logica,1994
5. Viewing hypothesis theories as constrained graded theories;Chatalic,1994