%0 Journal Article %A R. M. Trigub %T Linear summation methods and the absolute convergence of Fourier series %J Izvestiya. Mathematics %D 1968 %P 21-46 %V 2 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1968_2_1_a1/ %G en %F IM2_1968_2_1_a1