TY  - JOUR
AU  - V. M. Mordashev
TI  - Best approximations of functions of several variables by sums of functions of fewer variables
JO  - Matematičeskie zametki
PY  - 1969
SP  - 217
EP  - 226
VL  - 5
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1969_5_2_a8/
LA  - ru
ID  - MZM_1969_5_2_a8
ER  -