@article{PORMA_1957__16_2_114787,
     author = {Silveira, M. da},
     title = {Correction to the article },
     journal = {Portugaliae mathematica},
     pages = {41--42},
     publisher = {mathdoc},
     volume = {16},
     number = {2},
     year = {1957},
     mrnumber = {0102741},
     zbl = {0074.09604},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1957__16_2_114787/}
}