%0 Journal Article %A V. K. Singh %T On the absolute summability |C, r+1|_k of the conjugate series of the r-th derived series of Fourier series %J Commentationes Mathematicae %D 1976 %P 147-153 %V 19 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14708/cm.v19i1.5849/ %R 10.14708/cm.v19i1.5849 %G pl %F 10_14708_cm_v19i1_5849