@book{ 0-303977035, title = {Computerkolleg Musik Gehörbildung: das interaktive Lernprogramm für Anfänger und Fortgeschrittene ; Kurse: Intervalle, Skalen, Rhythmen, Akkorde, Kadenzen, Melodien}, series = {Schott Music Software}, author = {Enders, Bernd and Weyde, Tillman}, editor = {Enders, Bernd}, editor = {Weyde, Tillman}, address = {Mainz}, publisher = {Schott}, year = {1999}, isbn = {379570331X}, language = {German}, url = {http://ecx.images-amazon.com/images/I/51D15V5N73L._SL500_AA300_.jpg}, url = {https://katalog.ub.uni-leipzig.de/Record/0-303977035} }