| Verfasser | Häufigkeit |
| Baumert, Norbert 1932-2019 |
35 |
| Seewann, Maria-Irma |
5 |
| Baumert, Jürgen 1941- |
3 |
| Becker, Michael |
2 |
| Hanjohr, Vivian |
2 |
| Holtz-Baumert, Gerhard 1927-1996 |
2 |
| Köller, Olaf 1963- |
2 |
| Maaz, Kai 1972- |
2 |
| Nowak, Frank |
2 |
| Ashman, Keith |
1 |
| Aurell, L. |
1 |
| Baumert, Agnes |
1 |
| Baumert, Arnim |
1 |
| Baumert, Hans Georg |
1 |
| Baumert, Jochen |
1 |
| Baumert, Norbert |
1 |
| Beckmann, Jürgen |
1 |
| Bergmann, Helmut |
1 |
| Bergmann, Helmut 1926-1998 |
1 |
| Bially, Gerhard 1952- |
1 |