%0 Journal Article %A Riečanová, Zdena %T On Regularity of a Measure on a $\sigma$-Algebra %J Mathematica slovaca %D 1969 %P 135-137 %V 19 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MASLO_1969__19_2_a8/ %G en %F MASLO_1969__19_2_a8