%0 Journal Article %A Frolík, Zdeněk %T A note on countably determined and distinguishable sets %J Commentationes Mathematicae Universitatis Carolinae %D 1987 %P 301-310 %V 28 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1987__28_2_a11/ %G en %F CMUC_1987__28_2_a11