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Brockhaus-1911: Oppenheim
Eisler-1912: Oppenheim, Heinrich Bernhard
Herder-1854: Oppenheim
Meyers-1905: Oppenheim [2] · Oppenheim [1]
Pagel-1901: Oppenheim, Hermann
Pataky-1898: Oppenheim, Frau Ida
Pierer-1857: Oppenheim