TY  - BOOK
AU  - Arnold, V. I.
AU  - Levi, Mark
TI  - Geometrical methods in the theory of ordinary differential equations
SN  - 0387966498
U1  - 515.352 19 
PY  - 1983///
CY  - New York
PB  - Springer-Verlag
KW  - Differential equations
ER  -