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2. I. Ciufolini, Theory and Experiments in General Relativity and other Metric Theories, Ph.D. Dissertation, University of Texas, Austin, Pub. Ann Arbor, Michigan, 1984.
3. A comprehensive introduction to the Lageos gravitomagnetic experiment: from the importance of the gravitomagnetic field in physics to preliminary error analysis and error budget;Ciufolini;Int. J. Mod. Phys.,1989
4. On a new method to measure the gravitomagnetic field using two orbiting satellites;Ciufolini;Nuovo Cimento A,1996
5. B. Tapley, J.C. Ries, R.J. Eanes, M.M. Watkins, NASA–ASI Study on LAGEOS III, CSR-UT publication No. CSR-89-3, Austin, Texas, 1989