| Verfasser | Häufigkeit |
|---|---|
| Veldkamp, Hendrik | 3 |
| Veldkamp, Jan F. | 3 |
| Veldkamp, Hans | 2 |
| Bowen, H. J. M. 1929-2001 | 1 |
| Flipphi, R. C. H. | 1 |
| Hart, E. 't | 1 |
| Hellwig, Christian | 1 |
| Hopman, Philip 1961- | 1 |
| Rutgers, Wim | 1 |
| Stone, Benjamin C. | 1 |
| Veldkamp, H. | 1 |
| Veldkamp, Herman Frederik | 1 |
| Veldkamp, Laura | 1 |
| Veldkamp, Tjibbe | 1 |