TY  - RPRT
TI  - Federal Information Processing Standards Publication: 4,800 and 9,600 bits per second two-wire duplex modems for data communications use on telephone-type circuits 
PY  - 1992
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST FIPS 166
DO  - 10.6028/NIST.FIPS.166
ER  -