@article{TAC_2005_14_a10, author = {F. Borceux and G. Janelidze and G.M. Kelly}, title = {On the representability of actions in a semi-abelian category}, journal = {Theory and applications of categories}, pages = {244--286}, publisher = {mathdoc}, volume = {14}, year = {2005}, language = {en}, url = {http://geodesic.mathdoc.fr/item/TAC_2005_14_a10/} }