Yo-Sub Han, Sang-Ki Ko, Kai Salomaa. State Complexity of Deletion. In Arseny M. Shur, Mikhail V. Volkov, editors, Developments in Language Theory - 18th International Conference, DLT 2014, Ekaterinburg, Russia, August 26-29, 2014. Proceedings. Volume 8633 of Lecture Notes in Computer Science, pages 37-48, Springer, 2014. [doi]
Abstract is missing.