%0 Journal Article %A K. M. Slepenchuk %T The absolute summability of series by Ces\`aro methods of negative order %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1965 %P 128-131 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1965_5_a16/ %G ru %F IVM_1965_5_a16