@article{CRMATH_2018__356_7_712_0,
     author = {Seigneur, Valentin},
     title = {Extensions de fonctions d'un voisinage de la sph\`ere \`a la boule},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {712--716},
     publisher = {Elsevier},
     volume = {356},
     number = {7},
     year = {2018},
     doi = {10.1016/j.crma.2018.05.016},
     language = {fr},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2018.05.016/}
}