1. Bender, P. L. (1992). Integrated Laser Doppler Method for measuring Planetary Gravity Fields, in From Mars to Greenland: Charting Gravity with Space and Airborne Instruments, O.L. Colombo (editor) Springer-Verlag, N.Y.
2. Bernard, A., and Touboul, P. (1991). Development of the High Sensitivity Gradio Accelerometers. The Aristoteles Mission Preparation, Proceedings SITEF 91,Toulouse, France, Oct. 91.
3. Chao, B. F. (1993). Geoid and Earth Rotation, in Geophysical Interpretations of the Geoid,ed. P. Vanicek and N. Christou, CRC Press, Inc.
4. Colombo, O.L. (1984). The Global Mapping of Gravity with Two Satellites“, Netherlands Geodetic Commission, Pub. in Geodesy, New Series, Vol 7, No. 3, Delft.
5. Schoemaker, B. L. (1990). Scientific Applications of Frequency-Stabilized Laser Technology in Space, JPL Publication 90–50.