Structure des groupes libres
Annales scientifiques de l'École Normale Supérieure, Série 3, Tome 76 (1959) no. 1, p. 1-58
@article{ASENS_1959_3_76_1_1_0,
     author = {Piccard, Sophie},
     title = {Structure des groupes libres},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     publisher = {Elsevier},
     volume = {3e s{\'e}rie, 76},
     number = {1},
     year = {1959},
     pages = {1-58},
     doi = {10.24033/asens.1076},
     zbl = {0092.01901},
     mrnumber = {21 \#4969},
     language = {fr},
     url = {http://www.numdam.org/item/ASENS_1959_3_76_1_1_0}
}
Piccard, Sophie. Structure des groupes libres. Annales scientifiques de l'École Normale Supérieure, Série 3, Tome 76 (1959) no. 1, pp. 1-58. doi : 10.24033/asens.1076. http://www.numdam.org/item/ASENS_1959_3_76_1_1_0/