TY  - RPRT
TI  - The time keeping system for GPS block IIR
AU  - Rawicz, H. C.
AU  - Epstein, M. A.
AU  - Rajan, J. A.
PY  - 1993
UR  - https://ntrs.nasa.gov/citations/19940006492
ID  - 19940006492
ER  -