@article{10_4171_dm_653,
     author = {Patrick Brosnan and Zinovy Reichstein and Angelo Vistoli},
     title = {Essential {Dimension} in {Mixed} {Characteristic}},
     journal = {Documenta mathematica},
     pages = {1587--1600},
     year = {2018},
     volume = {23},
     doi = {10.4171/dm/653},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/653/}
}