%0 Journal Article
%A A. I. Lanin
%A M. M. Popov
%T Behaviour of the whispering gallery rays in a~vicinity of a~point where curvature of the boundary vanishes
%J Zapiski Nauchnykh Seminarov POMI
%D 1981
%P 146-155
%V 104
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_1981_104_a14/
%G ru
%F ZNSL_1981_104_a14