| Author | Popularity |
|---|---|
| Taweel, H.Z. | 10 |
| Elgersma, A. | 7 |
| Smit, H.J. | 7 |
| Dijkstra, J. | 6 |
| Tamminga, S. | 5 |
| Tas, B.M. | 5 |
| Hendriks, W.H. | 2 |
| Taweel, H.Z.H. | 2 |
| van Vuuren, A.M. | 2 |
| Boer, H. | 1 |
| Jacobs, A.A.A. | 1 |
| Johansson, B.E.O. | 1 |
| Murphy, M. | 1 |
| Smits, M.A. | 1 |
| Sterk, A.R. | 1 |
| Tamminga, Seerp | 1 |
| Witkowska, I.M. | 1 |
| van Baal, J. | 1 |
