| Verfasser | Häufigkeit |
| Begon, Michael 1951- |
30 |
| Townsend, Colin R. 1949- |
29 |
| Harper, John L. 1925-2009 |
20 |
| Harper, John L. |
8 |
| Janda, Laura A. 1957- |
7 |
| Townsend, Charles E. 1932-2015 |
7 |
| Prindl, Andreas R. |
4 |
| Townsend, Charles C. |
4 |
| Townsend, Joyce H. |
4 |
| Wasserman, Max J. |
4 |
| Cavender-Bares, Jeannine |
2 |
| Cloud, Henry 1952- |
2 |
| Gamon, John A. |
2 |
| Harper, J. L. |
2 |
| Kelly, John C. |
2 |
| Townsend, Colin |
2 |
| Townsend, John C. |
2 |
| Townsend, John Sims 1952- |
2 |
| Townsend, Peter D. |
2 |
| Townsend, Philip A. |
2 |