TY  - JOUR
AU  - A. O. Ignatyev
TI  - On the existence of a periodic solution of the Lienard system with impulse effect
JO  - Trudy Instituta matematiki i mehaniki
PY  - 2021
SP  - 79
EP  - 87
VL  - 27
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TIMM_2021_27_1_a7/
LA  - ru
ID  - TIMM_2021_27_1_a7
ER  -