TY  - JOUR
AU  - V. V. Arestov
TI  - The best approximation to a class of functions of several variables by another class and related extremum problems
JO  - Matematičeskie zametki
PY  - 1998
SP  - 323
EP  - 340
VL  - 64
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1998_64_3_a0/
LA  - ru
ID  - MZM_1998_64_3_a0
ER  -