%0 Journal Article %A Paúl, Pedro J. %T New applications of Pták's extension theorem to weak compactness %J Czechoslovak Mathematical Journal %D 1989 %P 454-458 %V 39 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1989.102316/ %R 10.21136/CMJ.1989.102316 %G en %F 10_21136_CMJ_1989_102316