Noga Alon, János Pach, Rom Pinchasi, Rados Radoicic, Micha Sharir. Crossing patterns of semi-algebraic sets. Journal of Combinatorial Theory, Series A, 111(2):310-326, 2005. [doi]
@article{AlonPPRS05,
title = {Crossing patterns of semi-algebraic sets},
author = {Noga Alon and János Pach and Rom Pinchasi and Rados Radoicic and Micha Sharir},
year = {2005},
doi = {10.1016/j.jcta.2004.12.008},
url = {http://dx.doi.org/10.1016/j.jcta.2004.12.008},
tags = { algebra},
researchr = {https://researchr.org/publication/AlonPPRS05},
cites = {0},
citedby = {0},
journal = {Journal of Combinatorial Theory, Series A},
volume = {111},
number = {2},
pages = {310-326},
}