@article{DBLP:journals/siamdm/AichholzerHHHV10,
author = {Oswin Aichholzer and
Thomas Hackl and
Clemens Huemer and
Ferran Hurtado and
Birgit Vogtenhuber},
title = {Large Bichromatic Point Sets Admit Empty Monochromatic 4-Gons},
journal = {SIAM J. Discrete Math.},
volume = {23},
number = {4},
year = {2010},
pages = {2147-2155},
ee = {http://dx.doi.org/10.1137/090767947},
bibsource = {DBLP, http://dblp.uni-trier.de}
}