Oscar H. Ibarra, Ömer Egecioglu. Hierarchies and Characterizations of Stateless Multicounter Machines. In Hung Q. Ngo, editor, Computing and Combinatorics, 15th Annual International Conference, COCOON 2009, Niagara Falls, NY, USA, July 13-15, 2009, Proceedings. Volume 5609 of Lecture Notes in Computer Science, pages 408-417, Springer, 2009. [doi]
Abstract is missing.