| Verfasser | Häufigkeit |
| Marquardt, Klaus |
18 |
| Marquardt, Klaus Eckhard |
3 |
| Beseler, Lothar 1942- |
2 |
| Bissels, Alexander 1976- |
2 |
| Clemenz, Susanne 1964- |
2 |
| Fleddermann, Christoph 1966- |
2 |
| Heiden, Ralph 1972- |
2 |
| Hiekel, Hans-Jürgen |
2 |
| Hülbach, Henning |
2 |
| Kappelhoff, Ursel |
2 |
| Leuchten, Alexius |
2 |
| Marquardt, Cornelia 1973- |
2 |
| Marquardt, Klaus 1926-2023 |
2 |
| Oberthür, Nathalie 1971- |
2 |
| Rinck, Klaus |
2 |
| Rolfs, Barbara |
2 |
| Schaack, Roger |
2 |
| Schipp, Johannes |
2 |
| Schmalenberg, Werner |
2 |
| Schrader, Peter 1963- |
2 |