| Verfasser | Häufigkeit |
| Rehder, Helmut 1927- |
18 |
| Rehder, Helmut 1905-1977 |
3 |
| Beck, Erwin 1937- |
1 |
| Breitenberger, Gerhard |
1 |
| Bürskens, Helmut |
1 |
| Kokwaro, John O. |
1 |
| Lehmann, Winfred P. 1916-2007 |
1 |
| Miksch, Adolf |
1 |
| Rehder, Hans |
1 |
| Rehder, Jacob |
1 |
| Sander, Helmut |
1 |
| Schein, Dietmar |
1 |
| Schulz-Behrend, George 1913-2010 |
1 |
| Stoll, Dieter |
1 |
| Wegener, Horst |
1 |