%0 Journal Article %A A. V. Andrianov %T Approximation of $MH_q^r$-class functions by Haar polynomials %J Matematičeskie zametki %D 1999 %P 323-335 %V 66 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1999_66_3_a0/ %G ru %F MZM_1999_66_3_a0