@article{mullin1954monogroove, title = {Monogroove Stereophonic Disk Recording}, author = {Mullin, John T.}, journal = {J. Audio Eng. Soc}, volume = {2}, number = {4}, pages = {249--251}, year = {1954}, url = {https://www.aes.org/e-lib/browse.cfm?elib=42} }