%0 Journal Article %A K. I. Oskolkov %T Approximation properties of summable functions on sets of full measure %J Sbornik. Mathematics %D 1977 %P 489-514 %V 32 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1977_32_4_a6/ %G en %F SM_1977_32_4_a6