%0 Journal Article %A G. F. Kangro %T Theory of summability of sequences and series %J Itogi nauki i tehniki. Seriâ, Matematičeskij analiz %D 1974 %P 5-70 %V 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/INTM_1974_12_a0/ %G ru %F INTM_1974_12_a0