%0 Journal Article
%A T. V. Savina
%T On the reflection law for higher-order elliptic equations
%J Doklady Akademii Nauk
%D 1993
%P 563-565
%V 332
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1993_332_5_a4/
%G ru
%F DAN_1993_332_5_a4