%0 Journal Article %A Leonid Vainerman %A Jean-Michel Vallin %T Yetter-Drinfel'd algebras and coideals of Weak Hopf C*-Algebras %J Theory and applications of categories %D 2021 %P 57-94 %V 37 %I mathdoc %U http://geodesic.mathdoc.fr/item/TAC_2021_37_a2/ %G en %F TAC_2021_37_a2