Susan G. Barwick, Matthew R. Brown, Tim Penttila. Flock generalized quadrangles and tetradic sets of elliptic quadrics of PG(3, ::::q::::). Journal of Combinatorial Theory, Series A, 113(2):273-290, 2006. [doi]
@article{BarwickBP06,
title = {Flock generalized quadrangles and tetradic sets of elliptic quadrics of PG(3, ::::q::::)},
author = {Susan G. Barwick and Matthew R. Brown and Tim Penttila},
year = {2006},
doi = {10.1016/j.jcta.2005.03.004},
url = {http://dx.doi.org/10.1016/j.jcta.2005.03.004},
researchr = {https://researchr.org/publication/BarwickBP06},
cites = {0},
citedby = {0},
journal = {Journal of Combinatorial Theory, Series A},
volume = {113},
number = {2},
pages = {273-290},
}