Xu, Guochang. Orbits [electronic resource] / by Guochang Xu. - Berlin, Heidelberg : Springer-Verlag Berlin Heidelberg, 2008. - xvii, 226 p. : ill., digital ; 24 cm. ISBN: 9783540785224 (electronic bk.) 9783540785217 (paper) Subjects--Topical Terms: Satellites--Orbits.Geosciences.Extraterrestrial Physics, Space Sciences.Geophysics/Geodesy.Math. Applications in Geosciences.Space Exploration and Astronautics. Dewey Class. No.: 523.2