| Verfasser | Häufigkeit |
| Becker, Wilhelm Adolf 1796-1846 |
18 |
| Marquardt, Joachim 1812-1882 |
18 |
| Beckman, William A. 1935- |
16 |
| Duffie, John A. |
12 |
| Ayres-Bennett, Wendy 1958- |
6 |
| Barnett, William A. |
6 |
| Braasem, W. A. 1918-1987 |
6 |
| Klein, Sanford A. 1950- |
6 |
| Duffie, John A. 1925-2005 |
5 |
| Basson, W. A. |
4 |
| Bentley, Wilson A. 1865-1931 |
4 |
| Borgen, William A. |
4 |
| Humphreys, William J. |
4 |
| Jawadi, Fredj |
4 |
| Knight, John S. 1894-1981 |
4 |
| Theron, Johannes N. |
4 |
| Brock, William A. 1941- |
3 |
| Hill, R. S. |
3 |
| Jahn, Janheinz 1918-1973 |
3 |
| Assibey-Bonsu, Winfred |
2 |