@article{johnston1979an, title = {An All-Digital "Commentary Grade" Subband Coder}, author = {Johnston, James D. and Crochiere, Ronald E.}, journal = {J. Audio Eng. Soc}, volume = {27}, number = {11}, pages = {855--865}, year = {1979}, url = {https://www.aes.org/e-lib/browse.cfm?elib=3173} }