%0 Journal Article
%A I. B. Ledovskaya
%T The higher order approximations of N.\,N.~Bogoljubov and N.\,M.~Krylov for solutions bounded on the whole axis
%J Doklady Akademii Nauk
%D 1969
%P 538-541
%V 184
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1969_184_3_a7/
%G ru
%F DAN_1969_184_3_a7