%0 Journal Article
%A V. S. Buldyrev
%A N. S. Grigor'ev
%T The two-scales expansions method for the refractive waveguide
%J Zapiski Nauchnykh Seminarov POMI
%D 1981
%P 33-48
%V 104
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_1981_104_a4/
%G ru
%F ZNSL_1981_104_a4