@book{UBHD-1013741, publisher={Bagel}, address={D{\"u}sseldorf}, year={1968}, pages={407 S.}, language={ger}, library={UB [Signatur: LA-I 9-436::1] ; UB [Signatur: 69 A 215::1] ; RO [Signatur: RO/IE 3682 S775-1]}, }