TY  - RPRT
TI  - Observation model and parameter partials for the JPL VLBI parameter estimation software MASTERFIT-1987
AU  - Sovers, O. J.
AU  - Fanselow, J. L.
PY  - 1987
UR  - https://ntrs.nasa.gov/citations/19880009139
ID  - 19880009139
ER  -