@book{ 0-1677384476, title = {Variations I: extra materials}, author = {Cage, John}, address = {New York, NY}, publisher = {Peters}, address = {; New York, NY}, publisher = {: Henmar Press}, address = {}, publisher = {}, year = {1960}, language = {Undetermined}, note = {Partitur. Keine konventionellen Noten, sondern graphische Notation}, url = {https://katalog.hgb-leipzig.de/Record/0-1677384476} }