TY - JOUR AU - D. Bourn AU - G. Janelidze TI - Protomodularity, descent, and semidirect products JO - Theory and applications of categories PY - 1998 SP - 37 EP - 46 VL - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TAC_1998_4_a1/ LA - en ID - TAC_1998_4_a1 ER -