Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{PORMA_1941__2_1_114592, author = {Monteiro, Ant\'onio}, title = {La notion de fermeture et les axiomes de s\'eparation}, journal = {Portugaliae mathematica}, pages = {290--298}, publisher = {mathdoc}, volume = {2}, number = {1}, year = {1941}, mrnumber = {0007096}, zbl = {0026.30202}, language = {fr}, url = {http://geodesic.mathdoc.fr/item/PORMA_1941__2_1_114592/} }
Monteiro, António. La notion de fermeture et les axiomes de séparation. Portugaliae mathematica, Tome 2 (1941) no. 1, pp. 290-298. http://geodesic.mathdoc.fr/item/PORMA_1941__2_1_114592/