Clyde P. Kruskal. The chromatic number of the plane: The bounded case. J. Comput. Syst. Sci., 74(4):598-627, 2008. [doi]
@article{Kruskal08a,
title = {The chromatic number of the plane: The bounded case},
author = {Clyde P. Kruskal},
year = {2008},
doi = {10.1016/j.jcss.2007.06.003},
url = {http://dx.doi.org/10.1016/j.jcss.2007.06.003},
researchr = {https://researchr.org/publication/Kruskal08a},
cites = {0},
citedby = {0},
journal = {J. Comput. Syst. Sci.},
volume = {74},
number = {4},
pages = {598-627},
}