@book{UBHD-1074856, editor={Backeberg, Curt}, title={Cereoideae (Boreocactinae)}, subtitle={mit ... 44 Tafeln}, publisher={Fischer}, address={Jena}, year={1961}, pages={S. 2631 - 3543, [46]}, language={ger}, library={UB [Signatur: O 3547-39::5]}, }