TY  - JOUR
AU  - Aberra,  Dawit
TI  - On a generalized reflection law for functions satisfying the Helmholtz equation
JO  - Electronic journal of differential equations
PY  - 1999
VL  - 1999
UR  - http://geodesic.mathdoc.fr/item/EJDE_1999__1999__a74/
LA  - en
ID  - EJDE_1999__1999__a74
ER  -