@article{CMH_1959__33_139168,
     author = {Michel A. Kervaire},
     title = {Sur le fibr\'e normal \`a une sph\`ere immerg\'ee dans un espace euclidien.},
     journal = {Commentarii mathematici Helvetici},
     pages = {121--131},
     publisher = {mathdoc},
     volume = {33},
     year = {1959},
     zbl = {0089.18202},
     url = {http://geodesic.mathdoc.fr/item/CMH_1959__33_139168/}
}