%0 Journal Article %A P. Ribenboin %T Boolean powers %J Fundamenta Mathematicae %D 1969 %P 243-268 %V 65 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-65-3-243-268/ %R 10.4064/fm-65-3-243-268 %G en %F 10_4064_fm_65_3_243_268