| Verfasser | Häufigkeit |
|---|---|
| Küppers, Walter | 13 |
| Küppers, Volkmar | 7 |
| Lellé, Ralph J. | 7 |
| Borgelt, Peter | 6 |
| Göhler, Sigrid | 4 |
| Krätzig, Helmut | 4 |
| Küppers, Manfred | 4 |
| Küppers, Ralf | 4 |
| Schulze, Ernst-Detlef 1941- | 4 |
| Bannier, Rudolf | 3 |
| Frohriep, Jürgen | 3 |
| Küppers, Andreas 1954- | 3 |
| Küppers, Hans | 3 |
| Reif, Albert 1951- | 3 |
| Riemann, Lutz | 3 |
| Bach, Rüdiger | 2 |
| Breuer-Küppers, Petra | 2 |
| Feldmeier, Rita | 2 |
| Herricht, Rolf | 2 |
| Hübchen, Henry | 2 |