| Verfasser | Häufigkeit |
|---|---|
| Bol, Hans 1957- | 3 |
| Bol, Johannes | 3 |
| Bol, Peter C. 1941-2012 | 2 |
| Cain, Hans-Ulrich 1951- | 2 |
| Hurtig, Hans-Werner | 2 |
| Stammler, Manfred | 2 |
| Bol, J. Hans D. | 1 |
| Bool, Flip 1947- | 1 |
| Decker, Hans-Joachim | 1 |
| Goldschmidt, Paul-Tijs 1953- | 1 |
| Verfasser | Häufigkeit |
|---|---|
| Bol, Hans 1957- | 3 |
| Bol, Johannes | 3 |
| Bol, Peter C. 1941-2012 | 2 |
| Cain, Hans-Ulrich 1951- | 2 |
| Hurtig, Hans-Werner | 2 |
| Stammler, Manfred | 2 |
| Bol, J. Hans D. | 1 |
| Bool, Flip 1947- | 1 |
| Decker, Hans-Joachim | 1 |
| Goldschmidt, Paul-Tijs 1953- | 1 |