%0 Journal Article %A V. V. Zhuk %T Approximation of periodic functions bounded by a subadditive operator %J Doklady Akademii Nauk %D 1966 %P 515-518 %V 169 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1966_169_3_a5/ %G ru %F DAN_1966_169_3_a5