@article{JTNB_1989__1_1_117_0,
     author = {Cohen, Henri},
     title = {Calcul du nombre de classes d'un corps quadratique imaginaire ou r\'eel, d'apr\`es {Shanks,} {Williams,} {McCurley,} {A.} {K.} {Lenstra} et {Schnorr}},
     journal = {S\'eminaire de th\'eorie des nombres de Bordeaux},
     pages = {117--135},
     publisher = {Universit\'e Bordeaux I},
     volume = {2e s{\'e}rie, 1},
     number = {1},
     year = {1989},
     mrnumber = {1050270},
     zbl = {0715.11073},
     language = {fr},
     url = {http://archive.numdam.org/item/JTNB_1989__1_1_117_0/}
}