%0 Journal Article
%A L. S. Lavrinovich
%T A certain class of systems of two differential equations
%J Differencialʹnye uravneniâ
%D 1970
%P 1017-1025
%V 6
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1970_6_6_a7/
%G ru
%F DE_1970_6_6_a7