@article{CMH_1940__13_138760,
     author = {Pierre Humbert},
     title = {Note relative \'a l'article: {Sur} les nombres de classes de certains corps quadratiques.},
     journal = {Commentarii mathematici Helvetici},
     pages = {67--67},
     publisher = {mathdoc},
     volume = {13},
     year = {1940},
     zbl = {0024.01001},
     url = {http://geodesic.mathdoc.fr/item/CMH_1940__13_138760/}
}