Alexander Kurz, Jirí Rosický. The Goldblatt-Thomason Theorem for Coalgebras. In Till Mossakowski, Ugo Montanari, Magne Haveraaen, editors, Algebra and Coalgebra in Computer Science, Second International Conference, CALCO 2007, Bergen, Norway, August 20-24, 2007, Proceedings. Volume 4624 of Lecture Notes in Computer Science, pages 342-355, Springer, 2007. [doi]
Abstract is missing.