Automata Implementation 4th International Workshop on Implementing Automata, WIA'99 Potsdam, Germany, July 17-19, 2001 Revised Papers Boldt Oliver Heftet / 2001 / Engelsk
Descriptional Complexity of Formal Systems 16th International Workshop, DCFS 2014, Turku, Finland, August 5-8, 2014, Proceedings Jürgensen, Helmut Heftet / 2014 / Engelsk
Semigroups. Theory and Applications Proceedings of a Conference held in Oberwolfach, FRG, Feb. 23 - Mar. 1, 1986 Jürgensen, Helmut Heftet / 1988 / Engelsk
