@inproceedings{zhijinga,
title={A study on the properties of CG and XD figures},
author={Zhijing Wang},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160813215157178859134},
}
Zhijing Wang. A study on the properties of CG and XD figures. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160813215157178859134.