| Verfasser | Häufigkeit |
| Koller, Andreas 1983- |
18 |
| Frey, Patrick 1949- |
15 |
| Koller, Dagmar 1939- |
11 |
| Koller, Hans 1921-2003 |
9 |
| Kollo, René 1937- |
6 |
| Koller, Alexander 1960- |
4 |
| Koller, Ingo 1940- |
4 |
| Köller, Olaf 1963- |
4 |
| Lehár, Franz 1870-1948 |
4 |
| Clarke, Kenneth S. 1914-1985 |
3 |
| Ebert, Wolfgang |
3 |
| Gruber, Ferry 1926-2004 |
3 |
| Hallstein, Ingeborg 1936- |
3 |
| Heesters, Johannes 1903-2011 |
3 |
| Kessl, Fabian |
3 |
| Koller, Ariane |
3 |
| Koller, Maria M. |
3 |
| Koller, Maria Magdalena |
3 |
| Koller, Philipp Alexander |
3 |
| Kraus, Peter 1939- |
3 |