TY  - JOUR
AU  - Yu. G. Smirnov
TI  - The Fredholm property of the problem of diffraction by a flat
JO  - Doklady Akademii Nauk
PY  - 1991
SP  - 147
EP  - 149
VL  - 319
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1991_319_1_a31/
LA  - ru
ID  - DAN_1991_319_1_a31
ER  -