%0 Journal Article %A Koubek, Václav %T Graphs with given subgraphs represent all categories %J Commentationes Mathematicae Universitatis Carolinae %D 1977 %P 115-127 %V 18 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1977__18_1_a12/ %G en %F CMUC_1977__18_1_a12