@article{cunningham1971comments, title = {Comments on -A Compatible Stereo-Quadraphbonic (SQ) Record System- and Author's Reply}, author = {Cunningham, James and Bauer, Benjamin B.}, journal = {J. Audio Eng. Soc}, volume = {19}, number = {11}, pages = {942}, year = {1971}, url = {https://www.aes.org/e-lib/browse.cfm?elib=2109} }