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Leibniz, Gottfried Wilhelm (1646-1716) (6)
Leeuwenhoek, Antoni van (1632-)(3)
Wolff, Christian von (1679-1754)(3)
Brief (6)
Leibniz, Gottfried Wilhelm (1646-1716) (6)
Leeuwenhoek, Antoni van (1632-)(3)
Wolff, Christian von (1679-1754)(3)
Brief (6)