@inproceedings{guozhen2017the,
title={The triviality of the 61-stem in the stable homotopy groups of spheres},
author={Guozhen Wang, and Zhouli Xu},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170530085415416484755},
booktitle={Annals of Mathematics},
volume={186},
number={2},
pages={501-580},
year={2017},
}

Guozhen Wang, and Zhouli Xu. The triviality of the 61-stem in the stable homotopy groups of spheres. 2017. Vol. 186. In Annals of Mathematics. pp.501-580. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170530085415416484755.