%0 Journal Article %A Ieke Moerdijk %T Closed dendroidal sets and unital operads %J Theory and applications of categories %D 2021 %P 118-170 %V 36 %I mathdoc %U http://geodesic.mathdoc.fr/item/TAC_2021_36_a4/ %G en %F TAC_2021_36_a4