APA   Click to copy
Giulietti, M. (2007). Blocking sets of external lines to a conic in PG(2,q),q even. European Journal of Combinatorics, 28, 36–42.

Chicago/Turabian   Click to copy
Giulietti, Massimo. “Blocking Sets of External Lines to a Conic in PG(2,q),q Even.” European Journal of Combinatorics 28 (2007): 36–42.

MLA   Click to copy
Giulietti, Massimo. “Blocking Sets of External Lines to a Conic in PG(2,q),q Even.” European Journal of Combinatorics, vol. 28, 2007, pp. 36–42.

@article{giulietti2007a,
  title = {Blocking sets of external lines to a conic in PG(2,q),q even},
  year = {2007},
  journal = {European Journal of Combinatorics},
  pages = {36-42},
  volume = {28},
  author = {Giulietti, Massimo}
}