@book{UBHD-1091053, author={Heinroth, Oskar and Heinroth, Magdalena}, title={Nachtrag}, publisher={Berm{\"u}hler}, address={Berlin-Lichterfelde}, year={1933}, pages={127 S., 72 Tafeln}, language={ger}, library={UB [Signatur: O 682-34 Folio::4]}, }