Nonexistence of Complete (st-t/s)-Arcs in Generalized Quadrangles of Order (s, t), I

@article{Thas2002NonexistenceOC,
  title={Nonexistence of Complete (st-t/s)-Arcs in Generalized Quadrangles of Order (s, t), I},
  author={Koen Thas},
  journal={J. Comb. Theory, Ser. A},
  year={2002},
  volume={97},
  pages={394-402}
}