H.J. · H. Jürgensen · Helmut Jurgensen
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Semigroups: Proceedings | 978-0-387-10701-1 (0-387-10701-0) | 1981 | |
| Semigroups: Theory and Applications: Proceedings | 978-0-387-19347-2 (0-387-19347-2) | 1988 | G. Lallement |