TY  - BOOK
AU  - Hagihara, Yusuke
AU  - 
TI  - Celestial mechanics, Vol.2, Part2: Perturbation theory
U1  - 521.4  HAG-C.2 
PY  - 1972///
CY  - MIT Press, Cambridge
KW  - Peturbations-Celestial mechanics
ER  -