%0 Journal Article %A D. Bourn %A G. Janelidze %T Protomodularity, descent, and semidirect products %J Theory and applications of categories %D 1998 %P 37-46 %V 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/TAC_1998_4_a1/ %G en %F TAC_1998_4_a1