@article{10_4153_CMB_1985_028_4,
     author = {Yamashita, Shinji},
     title = {Sur le {Lemme} de {Schwarz}},
     journal = {Canadian mathematical bulletin},
     pages = {233--236},
     year = {1985},
     volume = {28},
     number = {2},
     doi = {10.4153/CMB-1985-028-4},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1985-028-4/}
}