TY  - JOUR
AU  - V. A. Kozlov
TI  - The~strong zero theorem for an~elliptic boundary value problem in an~angle
JO  - Sbornik. Mathematics
PY  - 1990
SP  - 283
EP  - 302
VL  - 67
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1990_67_1_a16/
LA  - en
ID  - SM_1990_67_1_a16
ER  -