%0 Journal Article
%A I. N. Yakushina
%T Asymptotic expansions of the solutions of the $n$-order differential equations with two turning points
%J Zapiski Nauchnykh Seminarov POMI
%D 1990
%P 172-179
%V 186
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_1990_186_a16/
%G ru
%F ZNSL_1990_186_a16