@conference{stephani1979an, title = {An Investigation into the Increase of Non-Linear Distortion Products from Virgin Tape to Disc Playback}, author = {Stephani, Otfried and Blüthgen, Björn}, booktitle = {Audio Engineering Society Convention 62}, month = {Mar}, year = {1979}, url = {https://www.aes.org/e-lib/browse.cfm?elib=2901} }