%0 Journal Article
%A I. M. Volk
%T On the limit cycle of a~dynamical system of differential equations in a~class of cases
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1959
%P 35-44
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_1959_1_a4/
%G ru
%F IVM_1959_1_a4