@article{10_4153_CMB_1966_056_5,
     author = {Scherk, P.},
     title = {On {Carath\'eodory's} {Theorem}},
     journal = {Canadian mathematical bulletin},
     pages = {463--465},
     year = {1966},
     volume = {9},
     number = {4},
     doi = {10.4153/CMB-1966-056-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1966-056-5/}
}