@article{PORMA_1945__4_4_114627,
     author = {Vidal, Enrique},
     title = {Sobre una representaci\'on equivalente de una porci\'on de superficie curva sobre un plano},
     journal = {Portugaliae mathematica},
     pages = {199--202},
     publisher = {mathdoc},
     volume = {4},
     number = {4},
     year = {1945},
     mrnumber = {0012851},
     zbl = {0060.35507},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1945__4_4_114627/}
}