@inproceedings{lunbo2008the,
title={The Question of Co unting for Intersection Po ints of Inner Diagonal Lines of Regular N Polygon},
author={Lunbo Xu},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160813215154799158064},
year={2008},
}

Lunbo Xu. The Question of Co unting for Intersection Po ints of Inner Diagonal Lines of Regular N Polygon. 2008. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160813215154799158064.