Ronald Fagin, John Geanakoplos, Joseph Y. Halpern, Moshe Y. Vardi. The Expressive Power of the Kierarchical Approach to Modeling Knowledge and Common Knowledge. In Yoram Moses, editor, Proceedings of the 4th Conference on Theoretical Aspects of Reasoning about Knowledge, Monterey, CA, March 1992. pages 229-244, Morgan Kaufmann, 1992.
Abstract is missing.