TY  - JOUR
AU  - R. K. Vasil'ev
TI  - On the degree of the approximation of functions of several variables by linear positive operators of finite rank
JO  - Matematičeskie zametki
PY  - 1993
SP  - 3
EP  - 15
VL  - 53
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1993_53_1_a0/
LA  - ru
ID  - MZM_1993_53_1_a0
ER  -