%0 Journal Article %A Zapletal, Jindřich %T Separating equivalence classes %J Commentationes Mathematicae Universitatis Carolinae %D 2018 %P 531-540 %V 59 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14712/1213-7243.2015.267/ %R 10.14712/1213-7243.2015.267 %G en %F 10_14712_1213_7243_2015_267