| Verfasser | Häufigkeit |
|---|---|
| Eraut, Michael R. | 11 |
| Snook, Roger K. | 11 |
| Tribe, Michael A. | 11 |
| Snook, Ben | 7 |
| Snook, Edith | 7 |
| Snook, Ian | 6 |
| Snook, Barbara | 5 |
| Snook, Ivan 1933- | 5 |
| Snook, Scott A. | 4 |
| Snook, Lynn 1918-2013 | 3 |
| Snook, Mike | 3 |
| Mason, David T. | 2 |
| Snook, Denis | 2 |
| Snook, Harry 1944- | 2 |
| Snook, Jim 1933- | 2 |
| Snook, John B. | 2 |
| Snook, Lee E. | 2 |
| Snook, Lynn | 2 |
| Snook, Sarah 1987- | 2 |
| Allemann, Fritz René 1910-1996 | 1 |