| Verfasser | Häufigkeit |
| Zippel, Hartmut |
11 |
| Zippel, Hermann 1842- |
11 |
| Zippel, Edgar 1966- |
5 |
| Hoffstadt, Stephan |
4 |
| Zippel, Christoph |
4 |
| Zippel, Heidrun |
4 |
| Zippel, Hilde |
4 |
| Zippel, Bernhard |
3 |
| Zippel, Elke 1968- |
3 |
| Zippel, Hans Peter |
3 |
| Zippel, Hansgeorg 1904- |
3 |
| Zippel, Horst |
3 |
| Gutschow, Konstanty 1902-1978 |
2 |
| Halloul, Zuhir 1958- |
2 |
| Hebenstreit, Johann Paul 1664-1718 |
2 |
| Hilger, Hartmut H. |
2 |
| Kaufmann, Hans |
2 |
| Pflug, Alexander |
2 |
| Pusch, Herwig 1944-2019 |
2 |
| Schmid, Dietmar 1941- |
2 |