TY  - JOUR
AU  - Yang Guang-wu
AU  - Xu Ke-ming
TI  - Uniqueness and stability of the solution of a problem with a directional derivative for a second-order equation of elliptic type
JO  - Differencialʹnye uravneniâ
PY  - 1997
SP  - 570
EP  - 572
VL  - 33
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1997_33_4_a23/
LA  - ru
ID  - DE_1997_33_4_a23
ER  -