@article{PORMA_1940__1_4_114558,
     author = {Gomes, Ruy Lu{\'\i}s},
     title = {Algumas aplica\c{c}\~oes da no\c{c}\~ao de matriz associada a um vector},
     journal = {Portugaliae mathematica},
     pages = {293--302},
     publisher = {mathdoc},
     volume = {1},
     number = {4},
     year = {1940},
     mrnumber = {0002825},
     zbl = {0023.37901},
     language = {pt},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1940__1_4_114558/}
}