%0 Journal Article %A Pták, Pavel %T Measure-determined enlargements of Boolean $\sigma$-algebras %J Commentationes Mathematicae Universitatis Carolinae %D 1990 %P 105-107 %V 31 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1990__31_1_a13/ %G en %F CMUC_1990__31_1_a13