| Verfasser | Häufigkeit |
| Eibl-Eibesfeldt, Irenäus 1928-2018 |
1 |
| Grzimek, Bernhard 1909-1987 |
1 |
| Koehler, Eduard Erich |
1 |
| Koehler, Hanns Erich |
1 |
| Koehler, Otto 1889-1974 |
1 |
| Kraus, Otto 1930-2017 |
1 |
| Parkinson, C. Northcote 1909-1993 |
1 |
| Rensch, Bernhard 1900-1990 |
1 |
| Rietschel, Peter 1903-1984 |
1 |
| Thenius, Erich 1924-2022 |
1 |