Blocking sets of external, tangent and secant lines to a quadratic cone in PG(3, q)

Bart De Bruyn, Puspendu Pradhan, Bikramaditya Sahu. Blocking sets of external, tangent and secant lines to a quadratic cone in PG(3, q). Discrete Mathematics, 344(6):112352, 2021. [doi]

@article{BruynPS21,
  title = {Blocking sets of external, tangent and secant lines to a quadratic cone in PG(3, q)},
  author = {Bart De Bruyn and Puspendu Pradhan and Bikramaditya Sahu},
  year = {2021},
  doi = {10.1016/j.disc.2021.112352},
  url = {https://doi.org/10.1016/j.disc.2021.112352},
  researchr = {https://researchr.org/publication/BruynPS21},
  cites = {0},
  citedby = {0},
  journal = {Discrete Mathematics},
  volume = {344},
  number = {6},
  pages = {112352},
}