@article{TAC_2012_26_a8,
     author = {Micah Blake McCurdy},
     title = {Graphical {Methods} {for
Tannaka} duality of weak bialgebras and weak {Hopf} algebras},
     journal = {Theory and applications of categories},
     pages = {233--280},
     year = {2012},
     volume = {26},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TAC_2012_26_a8/}
}