@article{02107508,
title = {Bounds on the Tur\'an density of PG(3, 2).},
journal = {The Electronic Journal of Combinatorics [electronic only]},
volume = {11},
year = {2004},
zbl = {1053.05066},
language = {en},
url = {http://dml.mathdoc.fr/item/02107508}
}
Cioabă, Sebastian M. Bounds on the Turán density of PG(3, 2).. The Electronic Journal of Combinatorics [electronic only], Tome 11 (2004) . http://gdmltest.u-ga.fr/item/02107508/