TY  - RPRT
TI  - NIST time and frequency bulletin: January
AU  - Stephenson, Kathryn
PY  - 2019
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST IR 8261-01
DO  - 10.6028/NIST.IR.8261-01
ER  -