%0 Journal Article %A Ed Dubinsky %A A. Pełczyński %A H. Rosenthal %T On Banach spaces X for which $Π_{2}(ℒ_{∞},X)=B(ℒ_{∞},X)$ %J Studia Mathematica %D 1972 %P 617-648 %V 44 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-44-6-617-648/ %R 10.4064/sm-44-6-617-648 %G en %F 10_4064_sm_44_6_617_648