%0 Journal Article %A William Hanf %T Representing real numbers in denumerable Boolean algebras %J Fundamenta Mathematicae %D 1976 %P 167-170 %V 91 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-91-3-167-170/ %R 10.4064/fm-91-3-167-170 %G en %F 10_4064_fm_91_3_167_170