Advances and Trends in Automata and Formal Languages A Collection of Papers in Honour of the 60th Birthday of Helmut Jürgensen

Cristian Calude Kai Salomaa Sheng Yu Advances and Trends in Automata and Formal Languages A Collection of Papers in Honour of the 60th Birthday of Helmut Jürgensen - J.UCS Special Issue. 117-118 2002 8 J. UCS 2 http://www.jucs.org/jucs_8_2/advances_and_trends_in db/journals/jucs/jucs8.html#CaludeSY02