@book{UBHD-1084620, publisher={K{\"u}mmerle}, address={G{\"o}ppingen}, year={1972}, pages={271 S.}, language={ger}, number={ARRAY(0x559eda408298)}, series={G{\"o}ppinger akademische Beitr{\"a}ge}, library={UB [Signatur: 73 A 741::1]}, }