| Author | Popularity |
|---|---|
| Garrett, James | 4 |
| Jones, Andrew D. | 4 |
| Kopainsky, Birgit | 4 |
| Nicholson, Charles F. | 4 |
| Parsons, David | 4 |
| Stephens, Emma C. | 3 |
| Klerkx, Laurens | 1 |
| Martin, G. | 1 |
| Phillips, Erica L. | 1 |
| Reidsma, P. | 1 |
| Snow, Val | 1 |
| Stephens Emma C. | 1 |
| Stephens, Emma C | 1 |
| Taffi, M. | 1 |
| Thornton, Philip K. | 1 |
| Timsina, J. | 1 |
| Topp, C. | 1 |
| Wijk, Mark T. van | 1 |
