%0 Journal Article
%A I. P. Karklin'
%A L. É. Reiziņš
%T The topological equivalence of systems of total differential equations in neighborhoods of closed trajectories
%J Differencialʹnye uravneniâ
%D 1967
%P 1495-1507
%V 3
%N 9
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1967_3_9_a8/
%G ru
%F DE_1967_3_9_a8