@article{10_4153_CMB_1997_014_4,
     author = {Vigu\'e, Jean-Pierre},
     title = {Un lemme de {Schwarz} pour les boules-unit\'es ouvertes},
     journal = {Canadian mathematical bulletin},
     pages = {117--128},
     year = {1997},
     volume = {40},
     number = {1},
     doi = {10.4153/CMB-1997-014-4},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1997-014-4/}
}