TY  - JOUR
AU  - K. T. Mynbaev
TI  - Approximation of the operator of differentiation in a weighted Sobolev class
JO  - Matematičeskie zametki
PY  - 1991
SP  - 153
EP  - 154
VL  - 49
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1991_49_5_a21/
LA  - ru
ID  - MZM_1991_49_5_a21
ER  -