James D. Johnston, David J. Goodman. Digital Transmission of Commentary-Grade (7 KHz) Audio at 56 or 64 Kbits/s. IEEE Transactions on Communications, 28(1):136-138, 1980. [doi]
@article{JohnstonG80,
title = {Digital Transmission of Commentary-Grade (7 KHz) Audio at 56 or 64 Kbits/s},
author = {James D. Johnston and David J. Goodman},
year = {1980},
doi = {10.1109/TCOM.1980.1094568},
url = {https://doi.org/10.1109/TCOM.1980.1094568},
researchr = {https://researchr.org/publication/JohnstonG80},
cites = {0},
citedby = {0},
journal = {IEEE Transactions on Communications},
volume = {28},
number = {1},
pages = {136-138},
}