| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Berberstudien & A Sketch of Siwi Berber | 978-3-89645-389-1 (3-89645-389-0) | 2005 | |
| Egyptian and Semito-Hamitic Studies in Memoriam W. Vycichl: In Memoriam W. Vycichl | 978-90-04-13245-0 (90-04-13245-7) | 2003 | Gabor Takacs |