%0 Journal Article %A Julien Bichon %T Gerstenhaber-schack and Hochschild cohomologies of Hopf algebras %J Documenta mathematica %D 2016 %P 955-986 %V 21 %U http://geodesic.mathdoc.fr/articles/10.4171/dm/550/ %R 10.4171/dm/550 %F 10_4171_dm_550