| Verfasser | Häufigkeit |
|---|---|
| Vernez, Georges | 13 |
| McCarthy, Kevin F. 1945- | 3 |
| Abrahamse, Allan F. | 1 |
| Bean, Frank D. | 1 |
| Constant, Louay | 1 |
| Culbertson, Shelly | 1 |
| Karam, Rita T. | 1 |
| Keely, Charles B. | 1 |
| Krop, Richard A. | 1 |
| Rydell, C. P. | 1 |
| Schoeni, Robert F. 1964- | 1 |
| Vaughan, Roger J. | 1 |
| Vernez, Georges 1939- | 1 |