@inproceedings{hongwei2013the,
title={The second pinching theorem for hypersurfaces with constant mean curvature in a sphere},
author={Hongwei Xu, and Zhiyuan Xu},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160929132512067567058},
booktitle={Mathematische Annalen},
volume={356},
pages={869–883},
year={2013},
}
Hongwei Xu, and Zhiyuan Xu. The second pinching theorem for hypersurfaces with constant mean curvature in a sphere. 2013. Vol. 356. In Mathematische Annalen. pp.869–883. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20160929132512067567058.