%0 Journal Article %A Ježek, Jaroslav %T EDZ-varieties: The Schreier property and epimorphisms onto %J Commentationes Mathematicae Universitatis Carolinae %D 1976 %P 281-290 %V 17 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1976__17_2_a6/ %G en %F CMUC_1976__17_2_a6