TY  - BOOK
AU  - Siegel, C.L.
AU  - Moser, J.K.
TI  - Lectures on celestial mechanics
SN  - 3540054197
U1  - 521.1 L 1 
PY  - 1956///
CY  - New York
PB  - Springer-Verlagg
KW  - Celestial Machanics
ER  -