1. The modal multilogic of geometry;Balbiani;J. Appl. Non-Class. Log.,1998
2. Obstacle avoidance procedure for mobile robots;Becker,2006
3. Modal logics of space;van Benthem,2007
4. Modal Kleene algebra and applications — a survey;Desharnais;J. Relat. Methods Comput. Sci.,2004
5. Kleene algebra with domain;Desharnais;ACM Trans. Comput. Log.,2006