%0 Journal Article
%A A. V. Marinchuk
%T Qualitative investigation in the large of a certain second order system
%J Differencialʹnye uravneniâ
%D 1971
%P 2107-2110
%V 7
%N 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1971_7_11_a22/
%G ru
%F DE_1971_7_11_a22