%0 Journal Article %A Yu. A. Brudnyi %T Approximation of functions defined in a convex polyhedron %J Doklady Akademii Nauk %D 1970 %P 1007-1009 %V 195 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1970_195_5_a0/ %G ru %F DAN_1970_195_5_a0