| Author | Popularity |
|---|---|
| Cassel, Tim | 4 |
| Bauer, Thomas | 1 |
| Bredenbrock, Claus | 1 |
| Buschbom, Jan-Henrik | 1 |
| Dwertmann, Hubert | 1 |
| Goch, Stefan | 1 |
| Grüne, Hardy | 1 |
| Havemann, Nils | 1 |
| Heinrich, Arthur | 1 |
| Herzog, Markwart | 1 |
| John, Michael | 1 |
| Kullick, Andreas | 1 |
| Luh, Andreas | 1 |
| Marschik, Matthias | 1 |
| Martens, René | 1 |
| Mikos, Lothar | 1 |
| Oswald, Rudolf | 1 |
| Pfeiffer, Lorenz | 1 |
| Pfeiffer, Lorenz / Vorwort | 1 |
| Rode, Jan C. | 1 |
