%0 Journal Article %A J. Meder %T Further results concerning the Nörlund summability of orthogonal series %J Annales Polonici Mathematici %D 1964 %P 237-265 %V 16 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-16-3-237-265/ %R 10.4064/ap-16-3-237-265 %G en %F 10_4064_ap_16_3_237_265