Philippe Balbiani, Hans P. van Ditmarsch, Andreas Herzig, Tiago De Lima. Some Truths Are Best Left Unsaid. In Thomas Bolander, Torben Braüner, Silvio Ghilardi, Lawrence S. Moss, editors, Advances in Modal Logic 9, papers from the ninth conference on "Advances in Modal Logic," held in Copenhagen, Denmark, 22-25 August 2012. pages 36-54, College Publications, 2012. [doi]
Abstract is missing.