%0 Journal Article %A Koubek, Václav %T Large systems of independent objects in concrete categories. I %J Czechoslovak Mathematical Journal %D 1984 %P 506-527 %V 34 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1984.101978/ %R 10.21136/CMJ.1984.101978 %G en %F 10_21136_CMJ_1984_101978