%0 Journal Article %A Kryczka, Andrzej %T Deviation from weak Banach–Saks property for countable direct sums %J Annales Universitatis Mariae Curie-Skłodowska. Mathematica %D 2014 %V 68 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/AUM_2014_68_2_a0/ %G en %F AUM_2014_68_2_a0