%0 Journal Article %A Jeffrey C. Morton %A Roger Picken %T Transformation double categories associated to 2-group actions %J Theory and applications of categories %D 2015 %P 1429-1468 %V 30 %I mathdoc %U http://geodesic.mathdoc.fr/item/TAC_2015_30_a42/ %G en %F TAC_2015_30_a42