TY  - JOUR
AU  - È. M. Saak
TI  - On the approximation of solutions to elliptic equations together with derivatives up to the boundary
JO  - Doklady Akademii Nauk
PY  - 1973
SP  - 277
EP  - 279
VL  - 208
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1973_208_2_a3/
LA  - ru
ID  - DAN_1973_208_2_a3
ER  -