%0 Journal Article %A Roman Sikorski %T The integral in a Boolean algebra %J Colloquium Mathematicum %D 1949 %P 20-26 %V 2 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-2-1-20-26/ %R 10.4064/cm-2-1-20-26 %G en %F 10_4064_cm_2_1_20_26