| title | ISBN-13 | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Fundamentals of Computation Theory: Proceedings of the 1981 International FCT-Conference, Szeged, Hungaria, August 24-28, 1981 | 978-3-540-10854-2 | 2008 | ||
| Fundamentals of Computation Theory: Proceedings of the 1981 International Fct-Conference, Szeged, Hungaria, August 24-29, 1981 | 978-0-387-10854-4 | 1981 | International Fct-Conference | |
| Products of Automata | 978-0-387-13719-3 | 1986 | ||
| Tree automata | 978-963-05-3170-2 | 1984 | F Gécseg | |