%0 Journal Article
%A V. E. Pronchatov
%T On an error estimate for the averaging method in a~two-frequency problem
%J Sbornik. Mathematics
%D 1989
%P 29-40
%V 62
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1989_62_1_a1/
%G en
%F SM_1989_62_1_a1