TY  - JOUR
AU  - L. M. Lerman
AU  - L. P. Shilnikov
TI  - On the classification of structurally stable nonautonomous systems of second order with a finite number of cells
JO  - Doklady Akademii Nauk
PY  - 1973
SP  - 544
EP  - 547
VL  - 209
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1973_209_3_a6/
LA  - ru
ID  - DAN_1973_209_3_a6
ER  -