TY  - JOUR
AU  - M.-B. Babayev
TI  - Approximation of Sobolev classes of functions by sums of products of functions of fewer variables
JO  - Matematičeskie zametki
PY  - 1990
SP  - 10
EP  - 21
VL  - 48
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1990_48_6_a1/
LA  - ru
ID  - MZM_1990_48_6_a1
ER  -