GEOS Inside and Out : an Introduction to GEOS, Its Applications and InternalsR. Kerkloh M. Tornsdorf1988PDF
Mean elements of GEOS 1 and GEOS 2B. C. DouglasCelestial Mechanics and Dynamical Astronomy1973DOI 10.1007/bf01229947
NASA GEOS Composition Forecast Modeling System GEOS‐CF v1.0: Stratospheric CompositionKnowland, K. E.American Geophysical Union (AGU)2022DOI 10.1029/2021ms002852
Ocean Tide Perturbations in the Orbits of GEOS 1 and GEOS 2Kurt LambeckSpringer Netherlands1974DOI 10.1007/bf01227617
Tidal Parameters from the Variation of Inclination of GEOS-1 and GEOS-2B. C. DouglasSpringer Netherlands1974DOI 10.1007/bf01227616