Marcello M. Bersani, Achille Frigeri, Alessandra Cherubini. On Some Classes of 2D Languages and Their Relations. In Jake K. Aggarwal, Reneta P. Barneva, Valentin E. Brimkov, Kostadin Koroutchev, Elka Korutcheva, editors, Combinatorial Image Analysis - 14th International Workshop, IWCIA 2011, Madrid, Spain, May 23-25, 2011. Proceedings. Volume 6636 of Lecture Notes in Computer Science, pages 222-234, Springer, 2011. [doi]
Abstract is missing.