%0 Journal Article
%A D. M. Grobman
%T The neighborhood of a singular point of a system of differential equations with small non-linearities
%J Doklady Akademii Nauk
%D 1967
%P 524-526
%V 172
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1967_172_3_a4/
%G ru
%F DAN_1967_172_3_a4