Automorphism Groups of Generalized Quadrangles via an Unusual Action of P L (2, 2Sph)

@article{OKeefe2002AutomorphismGO,
  title={Automorphism Groups of Generalized Quadrangles via an Unusual Action of P L (2, 2Sph)},
  author={Christine M. O'Keefe and Tim Penttila},
  journal={Eur. J. Comb.},
  year={2002},
  volume={23},
  pages={213-232}
}