| Verfasser | Häufigkeit |
| Grabowski, John J. |
4 |
| Grabowski, John S. |
4 |
| Grabowski, Henry G. |
3 |
| Vernon, John M. 1937- |
3 |
| Grabowski, Christophe |
2 |
| Abraham, Werner |
1 |
| Alter, Kai |
1 |
| Arnold, Lucinda K. |
1 |
| Askedal, John Ole |
1 |
| Cawley, John H. |
1 |
| Chopin, Frédéric 1810-1849 |
1 |
| Comrie, Bernard |
1 |
| Dahl, Östen |
1 |
| David C., Hammack |
1 |
| Donhauser, Karin |
1 |
| Ehrich, Veronika |
1 |
| Eisenberg, Peter |
1 |
| Eli, Lederhendler |
1 |
| Engel, Ulrich |
1 |
| Esiri, Margaret M. |
1 |