%0 Journal Article %A Duda, Jaromír %T Varieties of subregular algebras are definable by a Mal'cev condition %J Commentationes Mathematicae Universitatis Carolinae %D 1981 %V 22 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1981__22_3_a16/ %G en %F CMUC_1981__22_3_a16