| Verfasser | Häufigkeit |
| Büllesbach, Alfred 1942- |
17 |
| Büllesbach, Alfred 1961- |
7 |
| Büllesbach, Alfred |
5 |
| Brauch, André 1965- |
3 |
| Büllesbach, Anna |
3 |
| Büllesbach, Rudolf 1955- |
3 |
| Büchner, Wolfgang |
2 |
| Büllesbach, Jürgen |
2 |
| Hassemer, Winfried 1940-2014 |
2 |
| Heinen, Anton H. |
2 |
| Kaufmann, Arthur 1923-2001 |
2 |
| Neumann, Ulfrid 1947- |
2 |
| Baumann, Ernst 1906-1985 |
1 |
| Büllesbach, Achim |
1 |
| Büllesbach, Daphne |
1 |
| Büllesbach, Martin |
1 |
| Cillero, Marta |
1 |
| Cowper, Marcus |
1 |
| European Alternatives |
1 |
| Hermann, Armin |
1 |