TY  - JOUR
AU  - Hans-Dieter Alber
TI  - Estimates for the Asymptotic Behavior of Solutions of the Helmholtz Equation, with an Application to Second order Elliptic Differential Operators with Variable Coefficients.
JO  - Mathematische Zeitschrift
PY  - 1979
SP  - 213
EP  - 226
VL  - 167
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZ_1979__167_172849/
ID  - MZ_1979__167_172849
ER  -