@inproceedings{hyperbolicneuralnetworks2,
  title = {Hyperbolic Neural Networks++},
  author = {Ryohei Shimizu and Yusuke Mukuta and Tatsuya Harada},
  year = {2020},
  booktitle = {ICLR 2021 1},
  eprint = {2006.08210},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2006.08210v3},
}