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}, }