@article{GRSME_1998_1998_1_a6,
     author = {Recio, Tom\'as},
     title = {El n\'umero de ra{\'\i}ces reales de un polinomio.},
     journal = {La Gaceta de la Real Sociedad Matem\'atica Espa\~nola},
     pages = {105-111},
     publisher = {mathdoc},
     volume = {1},
     number = {1},
     year = {1998},
     language = {es},
     url = {http://geodesic.mathdoc.fr/item/GRSME_1998_1998_1_a6/}
}