@article{1113318124,
author = {Durante, Nicola and Olanda, Domenico},
title = {A characterization of the family of secant or external lines of an ovoid of PG$(3,q)$},
journal = {Bull. Belg. Math. Soc. Simon Stevin},
volume = {11},
number = {5},
year = {2005},
pages = { 1-4},
language = {en},
url = {http://dml.mathdoc.fr/item/1113318124}
}
Durante, Nicola; Olanda, Domenico. A characterization of the family of secant or external lines of an ovoid of PG$(3,q)$. Bull. Belg. Math. Soc. Simon Stevin, Tome 11 (2005) no. 5, pp. 1-4. http://gdmltest.u-ga.fr/item/1113318124/