%0 Journal Article
%A G. S. Krechetov
%T Stability of a system of the first class with zero first diagonal coefficient
%J Differencialʹnye uravneniâ
%D 1985
%P 1891-1898
%V 21
%N 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1985_21_11_a5/
%G ru
%F DE_1985_21_11_a5