%0 Journal Article %A N. M. Miroshin %A V. V. Khromov %T A problem of best approximation of functions of several variables %J Matematičeskie zametki %D 1982 %P 721-727 %V 32 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1982_32_5_a13/ %G ru %F MZM_1982_32_5_a13