TY  - RPRT
TI  - Status of Frequency and Time Support for NASA Programs
AU  - Huhnle, P. F.
AU  - Kushmeider, P. J.
AU  - Wardrip, S. C.
PY  - 1993
UR  - https://ntrs.nasa.gov/citations/20060039671
ID  - 20060039671
ER  -