%0 Journal Article
%A B. M. Peretyagin
%T On the number of limit cycles of equation $\frac{dy}{dx}=\frac{cx+dy+P(x,y)}{ax+by+Q(x,y)}$ where $P(x,y)$ and $Q(x,y)$ are homogeneous polynomials of degree~$n$
%J Doklady Akademii Nauk
%D 1957
%P 29-32
%V 114
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1957_114_1_a6/
%G ru
%F DAN_1957_114_1_a6