| Verfasser | Häufigkeit |
| Frings, Stephan 1956- |
14 |
| Müller, Werner A. 1937- |
9 |
| Möhrlen, Frank |
4 |
| Müller, Frank 1961- |
4 |
| Carr, Richard W. |
1 |
| De Col, Roberto |
1 |
| Frings, Stephan |
1 |
| Maassen-Pohlen, Matt Jan Gerard 19XX- |
1 |
| Maurer, Margot |
1 |
| Messlinger, Karl |
1 |
| Papotto, Nunzia |
1 |
| Pohlen, Helga 19XX- |
1 |
| Schueler, Markus |
1 |
| Sertel-Nakajima, Julika |
1 |