@book{UBHD-3508450, author={R{\"o}hl, Heinz}, publisher={Schmidt-R{\"o}mhild}, address={L{\"u}beck}, year={1987}, pages={485 S.}, language={ger}, isbn={3-7950-3201-6 and 978-3-7950-3201-2}, library={UB [Signatur: 88 A 5230]}, }