@article{ASENS_1978_4_11_3_297_0,
     author = {Robert, Gilles},
     title = {Nombres de {Hurwitz} et unit\'es elliptiques. {Un} crit\`ere de r\'egularit\'e pour les extensions ab\'eliennes d'un corps quadratique imaginaire},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {297--389},
     publisher = {Elsevier},
     volume = {4e s{\'e}rie, 11},
     number = {3},
     year = {1978},
     doi = {10.24033/asens.1349},
     mrnumber = {80k:12010},
     zbl = {0409.12008},
     language = {fr},
     url = {http://archive.numdam.org/articles/10.24033/asens.1349/}
}