@book{ 0-134289278X, title = {Klassik aktiv}, author = {Kern, Renate and Kern, Walter}, editor = {Kern, Renate}, editor = {Kern, Walter}, address = {Rum/Innsbruck}, publisher = {Helbling}, year = {2007}, edition = {1. Aufl.}, isbn = {9783850613958}, isbn = {385061395X}, language = {German}, url = {http://deposit.d-nb.de/cgi-bin/dokserv?id=2998000&prov=M&dok_var=1&dok_ext=htm}, url = {https://katalog.hfmdd.de/Record/0-134289278X} }