@article{02142911,
title = {Extended near hexagons and line systems.},
journal = {Advances in Geometry},
volume = {4},
year = {2004},
pages = {181-214},
doi = {10.1515/advg.2004.013},
zbl = {1068.51008},
language = {en},
url = {http://dml.mathdoc.fr/item/02142911}
}
Cuypers, Hans. Extended near hexagons and line systems.. Advances in Geometry, Tome 4 (2004) pp. 181-214. doi : 10.1515/advg.2004.013. http://gdmltest.u-ga.fr/item/02142911/