| Verfasser | Häufigkeit |
| Haas, Karel H. de |
13 |
| Haas, Werner de |
9 |
| Knorr, Fredy |
5 |
| Dodge, David 1910-1974 |
3 |
| Haas, Tymon C. A. de 1979- |
3 |
| Adams, John 1947- |
2 |
| Armstrong, Kayt |
2 |
| Attema, Peter A. J. 1957- |
2 |
| De Haas, Darius |
2 |
| Haas, Georg Friedrich 1953- |
2 |
| Jordan, June 1936-2002 |
2 |
| Kenyon, Ley |
2 |
| Koons, Irv |
2 |
| Tol, Gijs |
2 |
| Alvear, Maria de 1960- |
1 |
| Amundsen, Mitchell 1958- |
1 |
| Beek, Arie van 1951- |
1 |
| Beek, L. v |
1 |
| Berg, R.J.H. van den |
1 |
| Beukema, Frits |
1 |