%0 Journal Article
%A A. N. Tikhonov
%T Small-parameter methods and their application
%J Differencialʹnye uravneniâ
%D 1985
%P 1659-1661
%V 21
%N 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1985_21_10_a0/
%G ru
%F DE_1985_21_10_a0