@book{ 0-1072990660, title = {Gottfried Keller: sieben Vorlesungen}, author = {Köster, Albert}, address = {Leipzig}, publisher = {Druck und Verlag von B.G. Teubner}, year = {1900}, language = {German}, url = {https://katalog.ub.uni-leipzig.de/Record/0-1072990660} }