TY  - RPRT
TI  - Study of geopotential error models used in orbit determination error analysis
AU  - Yee, C.
AU  - Kelbel, D.
AU  - Lee, T.
AU  - Samii, M. V.
AU  - Mistretta, G. D.
AU  - Hart, R. C.
PY  - 1991
UR  - https://ntrs.nasa.gov/citations/19920004865
ID  - 19920004865
ER  -