| Verfasser | Häufigkeit |
| Binder, Christoph 1975- |
8 |
| Binder, Ulrich 1965- |
8 |
| Oelkers, Jürgen 1947- |
8 |
| Schäffer, Utz 1966- |
8 |
| Weber, Jürgen 1953- |
8 |
| Binder, Jürgen |
4 |
| Binder, Klaus 1947- |
4 |
| Heinrichs, Hans-Jürgen 1945- |
4 |
| Raphael, Max 1889-1952 |
4 |
| Binder, Ulrich |
2 |
| Drerup, Johannes 1981- |
2 |
| Oelkers, Jürgen |
2 |
| Acker, Till |
1 |
| Annas, Max 1963- |
1 |
| Bernarding, Johannes |
1 |
| Binder, Christoph |
1 |
| Binder, Harald |
1 |
| Binder, Johannes |
1 |
| Binder, Jürgen 1966- |
1 |
| Binder, Jürgen Patrick |
1 |