@inproceedings{jack2016periodic,
title={Periodic orbits of the ABC flow with $A=B=C=1$},
author={Jack Xin, Yifeng Yu, and Andrej Zlato},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160818094045740432224},
booktitle={ArXiv},
year={2016},
}