| Verfasser | Häufigkeit |
|---|---|
| Eggerl, Hans-Peter | 2 |
| Schäble, Claudia | 2 |
| Vugt, Thomas van 1956- | 2 |
| Brouwers, Hermann 1900- | 1 |
| Hemmati, Minu | 1 |
| Verhoosel, Karén | 1 |
| Vugt, Barry H. van | 1 |
| Vugt, Barry Hubertine van | 1 |
| Vugt, Hendrina van | 1 |
| Vugt, Simone van | 1 |
| Woodhill, Anthony James | 1 |