%0 Journal Article %A Hiroyuki Nakaoka %T Cohomology theory in 2-categories %J Theory and applications of categories %D 2008 %P 543-604 %V 20 %I mathdoc %U http://geodesic.mathdoc.fr/item/TAC_2008_20_a15/ %G en %F TAC_2008_20_a15