%0 Journal Article %A O. G. Rovenska %A O. A. Novikov %T On approximation of classes of analytic periodic functions by Fejer means %J Čebyševskij sbornik %D 2020 %P 218-226 %V 21 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/CHEB_2020_21_4_a18/ %G ru %F CHEB_2020_21_4_a18