1. Fundamentals of Astrodynamics and Applications;Vallado,2001
2. The motion of a close earth satellite;Kozai;Astron. J.,1959
3. A second-order satellite orbit theory, with compact results in cylindrical coordinates;Gooding;Philos. Trans. R. Soc. London. Ser. A, Math. Phys. Sci.,1997
4. An Analytical Satellite Theory Using Gravity and a Dynamic Atmosphere;Hoots,1982