%0 Journal Article %A Dominique Bourn %A George Janelidze %T Characterization of protomodular varieties of universal algebras %J Theory and applications of categories %D 2003 %P 143-147 %V 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/TAC_2003_11_a5/ %G en %F TAC_2003_11_a5