@article{PORMA_1940__1_4_114563,
     author = {Monteiro, Ant\'onio},
     title = {Caract\'erisation des espaces de {Hausdorff} au moyen de l'op\'eration de d\'erivation},
     journal = {Portugaliae mathematica},
     pages = {333--339},
     publisher = {mathdoc},
     volume = {1},
     number = {4},
     year = {1940},
     mrnumber = {0002519},
     zbl = {0023.30403},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1940__1_4_114563/}
}