@article{PORMA_1942__3_2_114605,
     author = {Sebasti\~ao e Silva, J.},
     title = {Les ensembles ferm\'es et le probl\`eme de {Wiener}},
     journal = {Portugaliae mathematica},
     pages = {124--131},
     publisher = {mathdoc},
     volume = {3},
     number = {2},
     year = {1942},
     mrnumber = {0007103},
     zbl = {0026.43201},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1942__3_2_114605/}
}