Pavel Valtr. Open Caps and Cups in Planar Point Sets. Discrete & Computational Geometry, 37(4):565-576, 2007. [doi]
@article{Valtr07,
title = {Open Caps and Cups in Planar Point Sets},
author = {Pavel Valtr},
year = {2007},
doi = {10.1007/s00454-006-1286-3},
url = {http://dx.doi.org/10.1007/s00454-006-1286-3},
tags = {source-to-source, open-source},
researchr = {https://researchr.org/publication/Valtr07},
cites = {0},
citedby = {0},
journal = {Discrete & Computational Geometry},
volume = {37},
number = {4},
pages = {565-576},
}