@article{00617011,
title = {On flocks of infinite quadratic cones.},
journal = {Bulletin of the Belgian Mathematical Society - Simon Stevin},
volume = {1},
year = {1994},
pages = {399-415},
zbl = {0811.51004},
language = {en},
url = {http://dml.mathdoc.fr/item/00617011}
}
De Clerck, F.; Van Maldeghem, H. On flocks of infinite quadratic cones.. Bulletin of the Belgian Mathematical Society - Simon Stevin, Tome 1 (1994) pp. 399-415. http://gdmltest.u-ga.fr/item/00617011/