Descriptional Complexity of Formal Systems 17th International Workshop, DCFS 2015, Waterloo, ON, Canada, June 25-27, 2015. Proceedings Shallit Jeffrey Heftet / 2015 / Engelsk
Descriptional Complexity of Formal Systems 16th International Workshop, DCFS 2014, Turku, Finland, August 5-8, 2014, Proceedings Jürgensen, Helmut Heftet / 2014 / Engelsk
Language and Automata Theory and Applications 13th International Conference, LATA 2019, St. Petersburg, Russia, March 26-29, 2019, Proceedings Martín-Vide, Carlos Heftet / 2019 / Engelsk
Implementation and Application of Automata 9th International Conference, CIAA 2004, Kingston, Canada, July 22-24, 2004, Revised Selected Papers Domaratzki Michael Heftet / 2005 / Engelsk