TY  - JOUR
AU  - V. Sh. Roitenberg
TI  - On polynomial differential equations of the second order on a circle without singular points
JO  - Vestnik Ûžno-Uralʹskogo gosudarstvennogo universiteta. Seriâ, Matematika, mehanika, fizika
PY  - 2020
SP  - 33
EP  - 40
VL  - 12
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VYURM_2020_12_4_a3/
LA  - ru
ID  - VYURM_2020_12_4_a3
ER  -