%0 Journal Article %A Mattia Galeotti %T Singularities of Moduli of Curves with a Universal Root %J Documenta mathematica %D 2017 %P 1337-1373 %V 22 %U http://geodesic.mathdoc.fr/articles/10.4171/dm/599/ %R 10.4171/dm/599 %F 10_4171_dm_599