%0 Journal Article %A V. A. Skvortsov %T Certain estimates of approximation of functions by Cesаro means of Walsh--Fourier series %J Matematičeskie zametki %D 1981 %P 539-547 %V 29 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1981_29_4_a6/ %G ru %F MZM_1981_29_4_a6