@inproceedings{lai2023an,
title={An old problem of Erd\H os: a graph without two cycles of the same length},
author={Lai Chunhui},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20211013142626071808877},
booktitle={Discrete Applied Mathematics},
volume={337},
pages={42-45},
year={2023},
}

Lai Chunhui. An old problem of Erd\H os: a graph without two cycles of the same length. 2023. Vol. 337. In Discrete Applied Mathematics. pp.42-45. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20211013142626071808877.