2015publishedAbout an Erdős–Grünbaum conjecture concerning piercing of non bounded convex setsAmanda Montejano, Luis Montejano, Edgardo Roldán-Pensado, Pablo SoberónDiscrete Comput. Geom. 53 (4), 941–950.Helly-type theoremsCombinatorial convexityarXiv ↗PDF ↗BibTeX