%0 Journal Article
%A A. I. Perov
%T Investigation in the neighborhood of a singular point of a multi-dimensional differential equation in the analytic case
%J Doklady Akademii Nauk
%D 1966
%P 544-547
%V 166
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1966_166_3_a9/
%G ru
%F DAN_1966_166_3_a9