TY  - RPRT
TI  - Status of frequency and time support for NASA systems
AU  - Kuhnle, Paul F.
AU  - Kushmeider, Paul J.
AU  - Wardrip, S. Clark
PY  - 1994
UR  - https://ntrs.nasa.gov/citations/19940026135
ID  - 19940026135
ER  -