1. Theory of Satellite Orbits in an Atmosphere;King-Hele,1964
2. L. Sehnal, Dynamics and Astrometry of natural and artificial celestial bodies, in: Proceedings of the Conference on Astrometry and Celestial mechanics, Poznan, Poland,1993, 1994, pp 325–332.
3. Orbital Motion;Roy,1978
4. MSIS-86 Thermospheric Model
5. CIRA 72 1972, COSPAR International Reference Atmosphere, Academic Verlag, Berlin.