@article{05668354,
title = {Generalized quadrangles and projective axes of symmetry.},
journal = {Beitr\"age zur Algebra und Geometrie},
volume = {51},
year = {2010},
pages = {191-207},
zbl = {1193.51008},
language = {en},
url = {http://dml.mathdoc.fr/item/05668354}
}
Steinke, Günter F.; Maldeghem, Hendrik Van. Generalized quadrangles and projective axes of symmetry.. Beiträge zur Algebra und Geometrie, Tome 51 (2010) pp. 191-207. http://gdmltest.u-ga.fr/item/05668354/