| Author | Popularity |
|---|---|
| Quinn, John L. | 3 |
| Santure, Anna W. | 3 |
| De Cauwer, Isabelle | 2 |
| Poissant, Jocelyn | 2 |
| Robinson, Matthew R. | 2 |
| Sheldon, Ben C. | 2 |
| Slate, Jon | 2 |
| Visser, M.E. | 2 |
| van Oers, K. | 2 |
| Barton, H.J. | 1 |
| Cole, Ella F. | 1 |
| Groenen, M. | 1 |
| Groenen, M.A.M. | 1 |
| Groenen, Martien | 1 |
| Kim, J.M. | 1 |
| Sheldon, B.C. | 1 |
| Slate, J. | 1 |
| Visser, Marcel | 1 |
| van Oers, Kees | 1 |
