Differencialʹnye uravneniâ, Tome 15 (1979) no. 9, pp. 1716-1719
Citer cet article
A. P. Sadovskii. On conditions for a center and focus for nonlinear oscillation equations. Differencialʹnye uravneniâ, Tome 15 (1979) no. 9, pp. 1716-1719. http://geodesic.mathdoc.fr/item/DE_1979_15_9_a21/
@article{DE_1979_15_9_a21,
author = {A. P. Sadovskii},
title = {On conditions for a center and focus for nonlinear oscillation equations},
journal = {Differencialʹnye uravneni\^a},
pages = {1716--1719},
year = {1979},
volume = {15},
number = {9},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/DE_1979_15_9_a21/}
}
TY - JOUR
AU - A. P. Sadovskii
TI - On conditions for a center and focus for nonlinear oscillation equations
JO - Differencialʹnye uravneniâ
PY - 1979
SP - 1716
EP - 1719
VL - 15
IS - 9
UR - http://geodesic.mathdoc.fr/item/DE_1979_15_9_a21/
LA - ru
ID - DE_1979_15_9_a21
ER -
%0 Journal Article
%A A. P. Sadovskii
%T On conditions for a center and focus for nonlinear oscillation equations
%J Differencialʹnye uravneniâ
%D 1979
%P 1716-1719
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%N 9
%U http://geodesic.mathdoc.fr/item/DE_1979_15_9_a21/
%G ru
%F DE_1979_15_9_a21
