TY  - JOUR
AU  - S. L. Edelstein
TI  - Asymptotic splitting of boundary-value problems for the Helmholtz equation in a strip with “permeable” boundaries
JO  - Izvestiya. Mathematics
PY  - 1997
SP  - 877
EP  - 898
VL  - 61
IS  - 4
UR  - http://geodesic.mathdoc.fr/item/IM2_1997_61_4_a9/
LA  - en
ID  - IM2_1997_61_4_a9
ER  -