| Verfasser | Häufigkeit |
|---|---|
| Sieper, Hans-Peter | 8 |
| Jacobs, Otto H. 1939- | 4 |
| Mathieu, Joseph 1903-1965 | 2 |
| Roos, Carl Alexander | 2 |
| Sieper, Johanna | 2 |
| Aegerter, P. | 1 |
| Appel, Heiner | 1 |
| Bakker, P. A. C. | 1 |
| Baraliakos, X. | 1 |
| Baraliakos, Xenofon | 1 |
| Conaghan, P. G. | 1 |
| D'Agostino, M. A. | 1 |
| Filippucci, E. | 1 |
| Hackstein, Rolf | 1 |
| Haibel, Hildrun | 1 |
| Hueber, Axel | 1 |
| Jurik, A. G. | 1 |
| Listing, Joachim | 1 |
| Mandl, P. | 1 |
| Marzo-Ortega, H. | 1 |