1. A road-map on complexity for hybrid logics;Areces,1999
2. Hybrid logics;Areces,2006
3. The logic of public announcements, common knowledge, and private suspicions;Baltag,1998
4. An internal semantics for modal logic: preliminary report;Fagin,1985
5. Expressivity and completeness for public update logic via reduction axioms;Kooi;Journal of Applied Non-Classical Logics,2007