TY  - RPRT
TI  - Federal Information Processing Standards Publication: representation for calendar date and ordinal date for information interchange 
PY  - 1988
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NIST FIPS 4-1
DO  - 10.6028/NBS.FIPS.4-1
ER  -