%0 Journal Article %A Frolík, Zdeněk %T Luzin sets are additive %J Commentationes Mathematicae Universitatis Carolinae %D 1980 %P 527-533 %V 21 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1980__21_3_a10/ %G en %F CMUC_1980__21_3_a10