| Verfasser | Häufigkeit |
| Berk, Ivo van den 1965- |
2 |
| Kordts, Robert 1980- |
2 |
| Krempkow, René 1970- |
2 |
| Salden, Peter |
2 |
| Schaper, Niclas 1961- |
2 |
| Scholkmann, Antonia |
2 |
| Szczyrba, Birgit 1961- |
2 |
| Ulrich, Immanuel |
2 |
| Wiemer, Matthias |
2 |
| Berk, Robert E. 1923- |
1 |
| Greenbaum, Michelle |
1 |
| Kerpen, Carrie |
1 |
| Kerpen, Dave |
1 |