%0 Journal Article %A I. Singer %T Basic sequences and reflexivity of Banach spaces %J Studia Mathematica %D 1961 %P 351-369 %V 21 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-21-3-351-369/ %R 10.4064/sm-21-3-351-369 %G en %F 10_4064_sm_21_3_351_369