%0 Journal Article
%A Hans-Dieter Alber
%T Estimates for the Asymptotic Behavior of Solutions of the Helmholtz Equation, with an Application to Second order Elliptic Differential Operators with Variable Coefficients.
%J Mathematische Zeitschrift
%D 1979
%P 213-226
%V 167
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZ_1979__167_172849/
%F MZ_1979__167_172849