@article{CMH_1950__24_138995,
     author = {Sophie Piccard},
     title = {Les groupes engendr\'es par un syst\`eme connexe de cycles d'ordre sept.},
     journal = {Commentarii mathematici Helvetici},
     pages = {4--17},
     publisher = {mathdoc},
     volume = {24},
     year = {1950},
     zbl = {0036.29502},
     url = {http://geodesic.mathdoc.fr/item/CMH_1950__24_138995/}
}