1. A. Baltag, L. S. Moss, S. Solecki, The logic of public announcements, common knowledge, and private suspicions, Technical Report SEN-R9922, CWI, Amsterdam, 1999. Many updates.
2. Logics for epistemic programs;Baltag;Synthese,2004
3. J. van Benthem, Information update as relativization, ILLC, University of Amsterdam, 2000, Available from http://staff.science.uva.nl/~johan/upd=Rel.pdf.
4. J. van Benthem, One is a lonely number: on the logic of communication. Technical Report PP-2002-27, ILLC, Amsterdam, 2002, in: P. Koepke et al. (Eds.), Colloquium Logicum, Münster, 2002, AMS Publications, Providence (to appear).
5. J. van Benthem, Open problems in logical dynamics, ILLC Prepublication PP-2005-06, ILLC Amsterdam, 2005.