@article{JTNB_2003__15_1_393_0,
     author = {Vinatier, St\'ephane},
     title = {Sur la racine carr\'ee de la codiff\'erente},
     journal = {Journal de th\'eorie des nombres de Bordeaux},
     pages = {393--410},
     publisher = {Universit\'e Bordeaux I},
     volume = {15},
     number = {1},
     year = {2003},
     mrnumber = {2019023},
     zbl = {1048.11088},
     language = {fr},
     url = {http://www.numdam.org/item/JTNB_2003__15_1_393_0/}
}