%0 Journal Article %A V. N. Spevakov %A A. B. Kudryavtsev %T Absolute summability of orthogonal series by Euler’s method %J Matematičeskie zametki %D 1977 %P 51-56 %V 21 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1977_21_1_a5/ %G ru %F MZM_1977_21_1_a5