Stephen L. Bloom, Zoltán Ésik. Regular and Algebraic Words and Ordinals. 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 1-15, Springer, 2007. [doi]
Abstract is missing.