%0 Journal Article %A G. Cox %T Lusin properties in the product space $S^n$ %J Fundamenta Mathematicae %D 1980 %P 199-210 %V 108 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-108-3-199-210/ %R 10.4064/fm-108-3-199-210 %G en %F 10_4064_fm_108_3_199_210