@conference{vlker1975a, title = {A Comparison of the Acoustic Quality of a Sound Recording with that of the Original: The Experience in Hessischer Rundfunk Studio I}, author = {Völker, Ernst-Joachim and Mueller, C. L. and Kittler, D.}, booktitle = {Audio Engineering Society Convention 51}, month = {May}, year = {1975}, url = {https://www.aes.org/e-lib/browse.cfm?elib=2409} }