%0 Journal Article
%A V. P. Maslov
%A A. I. Shafarevich
%T On Asymptotic Solutions of Nonlinear Equations in the Presence of Turning Points
%J Differencialʹnye uravneniâ
%D 2004
%P 686-691
%V 40
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_2004_40_5_a13/
%G ru
%F DE_2004_40_5_a13