%0 Journal Article %A Zinovy Reichstein %A Angelo Vistoli %T A genericity theorem for algebraic stacks and essential dimension of hypersurfaces %J Journal of the European Mathematical Society %D 2013 %P 1999-2026 %V 15 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4171/jems/411/ %R 10.4171/jems/411 %F JEMS_2013_15_6_a0