TY  - RPRT
TI  - High-precision orbit determination for high-earth elliptical orbiters using the Global Positioning System
AU  - Lichten, S. M.
AU  - Estefan, J. A.
PY  - 1990
UR  - https://ntrs.nasa.gov/citations/19900065972
ID  - 19900065972
ER  -