%0 Journal Article %A D. E. Men'shov %T On the summation of orthogonal series by linear methods %J Doklady Akademii Nauk %D 1960 %P 507-509 %V 131 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1960_131_3_a10/ %G ru %F DAN_1960_131_3_a10