Thomas Ågotnes, Michal Walicki. Strongly Complete Axiomatizations of Knowing at Most in Syntactic Structures. In Francesca Toni, Paolo Torroni, editors, Computational Logic in Multi-Agent Systems, 6th International Workshop, CLIMA VI, London, UK, June 27-29, 2005, Revised Selected and Invited Papers. Volume 3900 of Lecture Notes in Computer Science, pages 57-76, Springer, 2005. [doi]