%0 Journal Article %A R. Darst %T A universal null set which is not concentrated %J Fundamenta Mathematicae %D 1968 %P 47-48 %V 62 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-62-1-47-48/ %R 10.4064/fm-62-1-47-48 %G en %F 10_4064_fm_62_1_47_48