| Autor | Títulos | 1.
| Friedrich Christian Flick Collection (Berlim, Alemanha) | 2 | 2.
| Friedrich Ebert Foundation | 1 | 3.
| Friedrich, Erich | 1 | 4.
| Friedrich, Françoise | 1 | 5.
| Friedrich, Johann | 1 | 6.
| Friedrich, Julia | 2 | 7.
| Friedrich, Julia ; Konig, Kasper | 1 | 8.
| Friedrich, Perzynski | 1 | 9.
| Friedrich, Theodor | 2 | 10.
| Friedrich, Werner | 1 |
|
|