@book{UBHD-1084619, author={Sch{\"a}fer, R{\"u}tger}, publisher={K{\"u}mmerle}, address={G{\"o}ppingen}, year={1972}, pages={347 S.}, language={ger}, number={ARRAY(0x557ad6a8dea8)}, series={G{\"o}ppinger akademische Beitr{\"a}ge}, library={UB [Signatur: 73 A 741::2]}, }