TY  - BOOK
TI  - Geometrical methods in the theory of ordinary differential equations 
T2  - Grundlehren der mathematischen Wissenschaften
SN  - 3540780386
PY  - 1988///
CY  - New York
PB  - Springer-Verlag
N1  - Translation of: Dopolnitelʹnye glavy teorii obyknovennykh different︠s︡ialʹnykh uravneniĭ
ER  -