%0 Journal Article %A Brendan Fong %A Maru Sarazola %T A recipe for black box functors %J Theory and applications of categories %D 2020 %P 979-1011 %V 35 %I mathdoc %U http://geodesic.mathdoc.fr/item/TAC_2020_35_a25/ %G en %F TAC_2020_35_a25