%0 Journal Article
%A I. S. Lomov
%T Small denominators in the analytic theory of degenerate differential equations
%J Differencialʹnye uravneniâ
%D 1993
%P 2079-2089
%V 29
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1993_29_12_a4/
%G ru
%F DE_1993_29_12_a4