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Brockhaus-1911: Erdmann [3] · Erdmann [2] · Erdmann
Eisler-1912: Erdmann, Johann Eduard
Herder-1854: Erdmann [2] · Erdmann [1]
Meyers-1905: Erdmann
Pataky-1898: Erdmann, Else
Pierer-1857: Erdmann Hülfreich · Erdmann