%0 Journal Article %A Kepka, Tomáš %T Distributive groupoids and preradicals. II. %J Commentationes Mathematicae Universitatis Carolinae %D 1983 %P 199-209 %V 24 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1983__24_2_a0/ %G en %F CMUC_1983__24_2_a0