%0 Journal Article
%A N. N. Bautin
%T Estimation of the number of algebraic limit cycles of the system $\dot x=P(x,\,y)$, $\dot y=Q(x,\,y)$ with algebraic right-hand sides
%J Differencialʹnye uravneniâ
%D 1980
%P 362
%V 16
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1980_16_2_a19/
%G ru
%F DE_1980_16_2_a19