@inproceedings{jia-linthe,
title={The Modular Chromatic Number of Trees},
author={Jia-Lin Wang, and Jie-Ying Yuan},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160813215156648517118},
}
Jia-Lin Wang, and Jie-Ying Yuan. The Modular Chromatic Number of Trees. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160813215156648517118.