Markus Holzer, Martin Kutrib. Unary Language Operations and Their Nondeterministic State Complexity. In Masami Ito, Masafumi Toyama, editors, Developments in Language Theory, 6th International Conference, DLT 2002, Kyoto, Japan, September 18-21, 2002, Revised Papers. Volume 2450 of Lecture Notes in Computer Science, pages 162-172, Springer, 2002. [doi]
Abstract is missing.