1. Feasibility of determining the mass of an asteroid from a spacecraft flyby;Anderson,1971
2. Precise mass determination and the nature of Phobos;Andert;Geophys. Res. Lett.,2010
3. Berthias, J.-P., Analysis of the Phobos-2 Radiometric Data Set, JPL Interoffice Memorandum, 6 March 1990, 314-6, 1129, 1990.
4. Planetary geodesy;Bills;Rev. Geophys.,1987
5. Phobos gravity field and its influence on its orbit and physical librations;Borderies;Astron. Astrophys.,1990