TY  - RPRT
TI  - Federal Information Processing Standards Publication: additional operational specifications for variable block rotating mass storage device 
PY  - 1983
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS FIPS 63-1sup
DO  - 10.6028/NBS.FIPS.63-1sup
ER  -