%0 Journal Article
%A M. A. Belyaeva
%T Approximate solution of a system of ordinary differential equations with small parameter multiplying the derivatives
%J Doklady Akademii Nauk
%D 1969
%P 1167-1170
%V 189
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1969_189_6_a0/
%G ru
%F DAN_1969_189_6_a0