%0 Journal Article
%A Aberra,  Dawit
%T On a generalized reflection law for functions satisfying the Helmholtz equation
%J Electronic journal of differential equations
%D 1999
%V 1999
%U http://geodesic.mathdoc.fr/item/EJDE_1999__1999__a74/
%G en
%F EJDE_1999__1999__a74