@article{FUNDAM_1947__34_1_213144,
     author = {Casimir Kuratowski},
     title = {Sur l'extension de deux th\'eor\`emes topologiques \`a la {Th\'eorie} des ensembles},
     journal = {Fundamenta Mathematicae},
     pages = {34},
     publisher = {mathdoc},
     volume = {34},
     number = {1},
     year = {1947},
     language = {fr},
     url = {https://geodesic-test.mathdoc.fr/item/FUNDAM_1947__34_1_213144/}
}