Schulze, Friedrichhttps://familysearch.org/service/search/cat/item/95016B. G. Teubner, 1811-1911 : Geschichte der FirmaOtherTeubnerTeubner, Reinhardhttps://familysearch.org/service/search/cat/item/1582928GelegenheitsfundeOtherTeubnerTeubner, Reinhardhttps://familysearch.org/service/search/cat/item/1582935GelegenheitsfundeOtherTeubnerKoerner, Bernhardhttps://familysearch.org/service/search/cat/item/229097Genealogische Sammlung der Familien Teubner und Zellmer von PosenOtherTeubnerZellmer