@article{GAMA_1965_1965_1_a6,
     author = {Sioc\'on, F. M.},
     title = {Una caracterizaci\'on de tautolog{\'\i}as en el c\'alculo proposicional con tres valores.},
     journal = {Gaceta matem\'atica},
     pages = {68-74},
     publisher = {mathdoc},
     volume = {17},
     number = {3-4},
     year = {1965},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/GAMA_1965_1965_1_a6/}
}