%0 Journal Article %A Koubek, Václav %T Each concrete category has a representation by $T_2$ paracompact topological spaces %J Commentationes Mathematicae Universitatis Carolinae %D 1974 %P 655-664 %V 15 %N 4 %U http://geodesic.mathdoc.fr/item/CMUC_1974_15_4_a7/ %G en %F CMUC_1974_15_4_a7