@book{UBHD-1121366, author={B{\"u}hler, Alfred}, publisher={Pharos-Verlag}, address={Basel}, year={1972}, pages={XIV, 347 Seiten}, language={ger}, isbn={3-7230-0093-2 and 978-3-7230-0093-9}, library={UB [Signatur: 73 C 46::1] ; SA [Signatur: eth 73/128 GF::1]}, }