| Verfasser | Häufigkeit |
|---|---|
| Cramp, Andy | 2 |
| McDougall, Julian | 2 |
| Bialaski, Tom | 1 |
| Cockcroft, Adrian | 1 |
| Collett, Anne 1956- | 1 |
| Hoogendoorn, Evert | 1 |
| Jopling, William Henry | 1 |
| McDougall, A. C. | 1 |
| McDougall, Richard | 1 |
| McDougall, Russell 1954- | 1 |
| Thomas, Sue 1955- | 1 |
| Vargas, Enrique | 1 |