| Verfasser | Häufigkeit |
| Cowan, Richard S. |
30 |
| Mennega, Erik A. |
29 |
| Stafleu, Frans A. 1921-1997 |
29 |
| Cowan, Richard 1957-2015 |
3 |
| Armstrong, Mark |
2 |
| Baer, Nicholas 1985- |
2 |
| Conlon, James 1950- |
2 |
| Cowan, David |
2 |
| Cowan, Michael 1971- |
2 |
| Cowan, Michael A. |
2 |
| Cowan, Simon |
2 |
| Kaes, Anton 1945- |
2 |
| Mumford, Ann |
2 |
| Puccini, Giacomo 1858-1924 |
2 |
| Vickers, John S. |
2 |
| Adams, Jonathan |
1 |
| Adams, Neal 1941-2022 |
1 |
| Allin, Norman 1884-1973 |
1 |
| Anderson, Robert |
1 |
| Ark, Joan van 1945- |
1 |