| Verfasser | Häufigkeit |
| Alberts, Bruce 1938- |
5 |
| Hopkin, Karen 1963- |
5 |
| Johnson, Alexander 1968- |
5 |
| Morgan, David 1958- |
5 |
| Roberts, Keith 1945- |
5 |
| Walter, Peter 1954- |
5 |
| Johnson, Karen |
4 |
| Raff, Martin 1938- |
4 |
| Hooper, Peter |
3 |
| Johnson, L. Syd M. |
3 |
| Rommelfanger, Karen S. |
3 |
| Consolmagno, Guy 1952- |
2 |
| Drogin, Anne |
2 |
| Gillan, Karen 1987- |
2 |
| Graw, Jochen 1953- |
2 |
| Häcker, Bärbel 1955- |
2 |
| Johnson, Dwayne 1972- |
2 |
| Johnson, Tana |
2 |
| Johnson, Todd |
2 |
| Johnson-Weiner, Karen M. |
2 |