@book{ Solr-7700466, title = {Vorfragen der Ethik ... Herrn Dr. Eduard Zeller : als Festschrift zur Feier seines fünfzigjährigen Doctorjubiläums am 25. August 1886}, series = {University of Chicago Digital Preservation Collection.}, author = {Sigwart, Christoph, 1830-1904}, address = {Freiburg}, publisher = {I.B., J.C.B. Mohr}, year = {1886}, pages = {48}, url = {http://pi.lib.uchicago.edu/1001/dig/pres/2007-0792} }