%0 Journal Article
%A I. B. Gontareva
%T On the existence of closed trajectories of structurally stable autonomous systems
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1987
%P 11-13
%N 8
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_1987_8_a1/
%G ru
%F IVM_1987_8_a1