%0 Journal Article %A Balcar, Bohuslav %T A theorem on supports in the theory of semisets %J Commentationes Mathematicae Universitatis Carolinae %D 1973 %P 1-6 %V 14 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1973__14_1_a0/ %G en %F CMUC_1973__14_1_a0