| Verfasser | Häufigkeit |
| Dimitrova, Violeta |
2 |
| Andreev, Kostadin |
1 |
| Boboševska-Borisova, Anka |
1 |
| Buchkov, Petar |
1 |
| Derilova, Iordanka |
1 |
| Dimitrova, Evtimija Georgieva |
1 |
| Fakirova, Violeta I. |
1 |
| Mladenov, Atanas |
1 |
| Sofijska opera i balet |
1 |
| Wagner, Richard 1813-1883 |
1 |
| Wächter, Erich |
1 |
| Zacharieva, Snežana |
1 |