%0 Journal Article %A Sebastian M. Cioabă %T Bounds on the Turán density of PG(3, 2) %J The electronic journal of combinatorics %D 2004 %V 11 %N 1 %U http://geodesic.mathdoc.fr/articles/10.37236/1844/ %R 10.37236/1844 %F 10_37236_1844