@article{CLTM_1998_1998_1_a24,
     author = {Giraldo, Luis and Sols, Ignacio},
     title = {Irregularidad de superficies regladas en el espacio proyectivo de dimensi\'on tres.},
     journal = {Collectanea mathematica},
     pages = {325-334},
     publisher = {mathdoc},
     volume = {49},
     number = {2-3},
     year = {1998},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CLTM_1998_1998_1_a24/}
}