TY  - JOUR
AU  - E. M. Il'in
TI  - Scattering by unbounded obstacles for second-order elliptic operators
JO  - Informatics and Automation
PY  - 1988
SP  - 80
EP  - 101
VL  - 179
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_1988_179_a5/
LA  - ru
ID  - TRSPY_1988_179_a5
ER  -