@article{TAC_2021_37_a2,
     author = {Leonid Vainerman and Jean-Michel Vallin},
     title = {Yetter-Drinfel'd algebras and coideals of {Weak} {Hopf} {C*-Algebras}},
     journal = {Theory and applications of categories},
     pages = {57--94},
     year = {2021},
     volume = {37},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAC_2021_37_a2/}
}