TY  - JOUR
AU  - L. N. Belyustina
TI  - Small periodic perturbations in a structurally stable autonomous system
JO  - Doklady Akademii Nauk
PY  - 1963
SP  - 251
EP  - 254
VL  - 148
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1963_148_2_a1/
LA  - ru
ID  - DAN_1963_148_2_a1
ER  -