@inproceedings{fengrigidity,
  title={Rigidity of polyhedral surfaces, I},
  author={Feng Luo},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191224205900783993364},
  booktitle={Journal of Differential Geometry},
  volume={96},
  number={2},
  pages={241-302},
}