| Verfasser | Häufigkeit |
| Hazelzet, Wilbert 1948- |
10 |
| Aronow, Wilbert S. 1931- |
5 |
| Fisch, Rudolf 1939- |
4 |
| Hogan, Wilbert |
4 |
| Kohler, André |
4 |
| Ugarte, Wilbert |
4 |
| Wilbert, Annette |
4 |
| Bank, Wilbert |
3 |
| Fischer-Wilbert, Agnes |
3 |
| Linden, Jaap ter 1947- |
3 |
| Petri, Wilbert |
3 |
| Abdul-Malik, Ahmed 1927-1993 |
2 |
| Abel, Carl Friedrich 1723-1787 |
2 |
| Anderson, Wilbert Lee |
2 |
| Aronow, Wilbert S. |
2 |
| Banchieri, Adriano 1568-1634 |
2 |
| Baudet, Rémy |
2 |
| Belder, Pieter-Jan 1966- |
2 |
| Bernardini, Alfredo 1961- |
2 |
| Blakey, Art 1919-1990 |
2 |