@article{PORMA_1943__4_1_114616,
     author = {Mira Fernandes, A. de},
     title = {Pseudo-extensori},
     journal = {Portugaliae mathematica},
     pages = {41--51},
     publisher = {mathdoc},
     volume = {4},
     number = {1},
     year = {1943},
     mrnumber = {0008496},
     zbl = {0028.09004},
     language = {pt},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1943__4_1_114616/}
}