Bibtex export
@book{ Oppenheimer1923, title = {System der Soziologie. Bd. 1, Allgemeine Soziologie ; Halbbd. 2, Der soziale Prozess}, author = {Oppenheimer, Franz}, year = {1923}, pages = {443-1149}, address = {Jena}, publisher = {G. Fischer}, urn = {https://nbn-resolving.org/urn:nbn:de:0168-ssoar-54609-9}, }