%0 Journal Article %A C. Himmelberg %T Measurable relations %J Fundamenta Mathematicae %D 1975 %P 53-72 %V 87 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-87-1-53-72/ %R 10.4064/fm-87-1-53-72 %G en %F 10_4064_fm_87_1_53_72