%0 Journal Article %A Roman Sikorski %T A few problems on Boolean algebras %J Colloquium Mathematicum %D 1963 %P 25-28 %V 11 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-11-1-25-28/ %R 10.4064/cm-11-1-25-28 %G en %F 10_4064_cm_11_1_25_28