1. Barlier, F., Carpino, M., Farinella, P., Mignard, F., Milani, A., Nobili, A.M., 1986, Non-Gravitational Perturbations on the Semimajor Axis of Lageos, Annales Geophysicae, 4, A, 3, 193–200.
2. Ahmed, A.H., Tapley, B.D., 1985, A semi-analytic theory for satellite orbit prediction, AASIAIAA Astrodynamics Specialist Conference, AAS 85–318, Vail, Colorado.
3. Borderies, N., 1976, La méthode de Centrage en Géodésie Spatiale, Thèse d l’Université P. Sabatier, Toulouse.
4. Cheng, M.K., Shum, C.K., Eanes, R.J., Schutz, B.E., Tapley, B.D., 1990, Long Period Perturbations In Starlette Orbit and Tide Solution, J. Geophys. Res., 95
(B6), 8723–8736.
5. Claes, H., Henrard, J., Zune, J.M., Moons, M., Lemaitre, A., 1988, Guide d’Utilisation du Manipulateur de Séries MS, Internat. Publ. Depart. of Mathematics, FUNDP, Namur, Belgium.