| Verfasser | Häufigkeit |
| Greve, Thomas |
5 |
| Carrel, Thierry 1960- |
2 |
| Greve, Nils 1951- |
2 |
| Hildebrandt, Helmut 1954- |
2 |
| Klie, Thomas 1955- |
2 |
| Libera, Paul 1966- |
2 |
| Löcherbach, Peter 1957- |
2 |
| Pimperl, Alexander 1983- |
2 |
| Rexrodt, Christian |
2 |
| Ribbert-Elias, Jürgen |
2 |
| Toepler, Edwin 1962- |
2 |
| Wendt, Wolf Rainer 1939- |
2 |
| Wissert, Michael 1949- |
2 |
| Abrahamson, Peter 1952- |
1 |
| Boje, Thomas P. 1944- |
1 |
| Ebener, Ann-Charlotte |
1 |
| Engl, Richard L. |
1 |
| Fox, Thomas |
1 |
| Greve, Bent 1953- |
1 |
| Greve, Kai |
1 |