%0 Journal Article %A È. M. Galeev %T Approximation by Fourier sums of classes of functions with several bounded derivatives %J Matematičeskie zametki %D 1978 %P 197-212 %V 23 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1978_23_2_a2/ %G ru %F MZM_1978_23_2_a2