TY  - BOOK
AU  - Ryabov, Y.
AU  - Yankovsky, G.
TI  - An elementary survey of celestial mechanics
SN  - 9780486450148
U1  - 521 
PY  - 2006///
CY  - Mineola, New York
PB  - Dover Publications
KW  - Celestial mechanics
ER  -