Erich Grädel, Janos Makowsky, Alexander A. Razborov. The Ackermann Award 2005. In C.-H. Luke Ong, editor, Computer Science Logic, 19th International Workshop, CSL 2005, 14th Annual Conference of the EACSL, Oxford, UK, August 22-25, 2005, Proceedings. Volume 3634 of Lecture Notes in Computer Science, pages 557-565, Springer, 2005. [doi]
Abstract is missing.