@inproceedings{ni2015ricci,
  title={Ricci curvature of the Internet topology},
  author={Ni, Chien-Chun and Lin, Yu-Yao and Gao, Jie and Gu, Xianfeng David and Saucan, Emil},
  booktitle={2015 IEEE Conference on Computer Communications (INFOCOM)},
  pages={2758--2766},
  year={2015},
  organization={IEEE}
}