TY - BOOK AU - Hagihara, Yusuke TI - Celestial mechanics: vol. 2, pt. 2, peturbation theory SN - 0-262-08053-2 PY - 1972/// CY - Cambridge PB - MIT Press KW - Astronomy and Astrophysics Thesaurus KW - Celestial mechanics KW - Perturbation KW - Perturbation theory ER -