@inproceedings{feng2006a,
title={A characterization of spherical polyhedral surfaces},
author={Feng Luo},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191224205848071050360},
booktitle={Journal of Differential Geometry},
volume={74},
number={3},
pages={407-424},
year={2006},
}