@misc{soberon-2015-erdos-grunbaum-piercing,
  title = {{About an Erdős–Grünbaum conjecture concerning piercing of non bounded convex sets}},
  author = {Amanda Montejano and Luis Montejano and Edgardo Roldán-Pensado and Pablo Soberón},
  year = {2015},
  eprint = {1407.0642},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1407.0642},
  note = {Discrete Comput. Geom. 53 (4), 941–950.}
}