| Author | Titles | | 1.
| Oppenheim, Leo | 1 | | 2.
| Oppenheim, Max Von | 1 | | 3.
| Oppenheim, Méret, 1913-1985 | 1 | | 4.
| Oppenheim, S. | 3 | | 5.
| Oppenheimer, Franz, 1864-1943 | 1 | | 6.
| Oppenheimer, Léonie von | 1 | | 7.
| Oppenheimer, Max, 1885-1954 | 1 | | 8.
| Oppenheimer, Sarah, 1972- | 1 | | 9.
| Opper, Thorsten | 1 | | 10.
| Oppert, Jules, 1825-1905 | 2 |
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