@book{CJPS_1989__9_,
     author = {Serre, Jean-Pierre},
     title = {Probl\`emes {Galoisiens} {\textendash} {I}},
     series = {Cours de Jean-Pierre Serre},
     number = {9},
     year = {1989},
     language = {fr},
     url = {http://archive.numdam.org/item/CJPS_1989__9_/}
}