%0 Journal Article %A L. Drenowski %T An extension of a theorem of Rosenthal on operators acting from $l_{∞}(Γ)$ %J Studia Mathematica %D 1976 %P 209-215 %V 57 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4064/sm-57-3-209-215/ %R 10.4064/sm-57-3-209-215 %G en %F 10_4064_sm_57_3_209_215