%0 Journal Article
%A V. L. Rabtsevich
%T Necessary and sufficient conditions for formal reducibility
%J Differencialʹnye uravneniâ
%D 1984
%P 2011-2013
%V 20
%N 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1984_20_11_a28/
%G ru
%F DE_1984_20_11_a28