@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}, }