@article{JEMS_2011_13_4_a8,
     author = {Patrick Brosnan and Zinovy Reichstein and Angelo Vistoli},
     title = {Essential dimension of moduli of curves and other algebraic stacks},
     journal = {Journal of the European Mathematical Society},
     pages = {1079--1112},
     publisher = {mathdoc},
     volume = {13},
     number = {4},
     year = {2011},
     doi = {10.4171/jems/276},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/jems/276/}
}