Yuichiro Miyamoto, Tomomi Matsui. Perfectness and imperfectness of unit disk graphs on triangular lattice points. Discrete Mathematics, 309(9):2733-2744, 2009. [doi]
@article{MiyamotoM09,
title = {Perfectness and imperfectness of unit disk graphs on triangular lattice points},
author = {Yuichiro Miyamoto and Tomomi Matsui},
year = {2009},
doi = {10.1016/j.disc.2008.06.029},
url = {http://dx.doi.org/10.1016/j.disc.2008.06.029},
tags = {graph-rewriting, rewriting},
researchr = {https://researchr.org/publication/MiyamotoM09},
cites = {0},
citedby = {0},
journal = {Discrete Mathematics},
volume = {309},
number = {9},
pages = {2733-2744},
}