| Author | Popularity |
|---|---|
| den Boer, L. | 3 |
| Kempenaar, C. | 2 |
| Lotz, L.A.P. | 2 |
| Beltman, W.H.J. | 1 |
| Beltman, W.J. | 1 |
| Creemers-Molenaar, T. | 1 |
| Helsper, J.P.F.G. | 1 |
| Kortenhoff, A. | 1 |
| Kwakman, P.H.S. | 1 |
| Ruyter-Spira, C. | 1 |
| Vandenbroucke-Grauls, C.M.J.E. | 1 |
| Zaat, S.A.J. | 1 |
| te Velde, A.A. | 1 |
