| Author | Popularity |
|---|---|
| van Grinsven, H. | 10 |
| Bleeker, A. | 3 |
| Erisman, J.W. | 3 |
| Oenema, O. | 3 |
| Westhoek, H. | 3 |
| Leip, A. | 2 |
| Lesschen, J.P. | 2 |
| Rood, T. | 2 |
| Schroder, J.J. | 2 |
| Sutton, M.A. | 2 |
| Tiktak, A. | 2 |
| Verdoes, N. | 2 |
| de Vries, W. | 2 |
| van Gaalen, F. | 2 |
| Baltussen, W.H.M. | 1 |
| Beusen, A.H.W. | 1 |
| Bouwman, A.F. | 1 |
| Bouwman, L.A. | 1 |
| Brandes, L. | 1 |
| Buis, E. | 1 |
