%0 Journal Article %A Amar Hadzihasanovic %T Weak units, universal cells, and coherence via universality for bicategories %J Theory and applications of categories %D 2019 %P 883-960 %V 34 %I mathdoc %U http://geodesic.mathdoc.fr/item/TAC_2019_34_a28/ %G en %F TAC_2019_34_a28