@article{dataaugmentationfreeunsupervisedlearning,
  title = {Data Augmentation-free Unsupervised Learning for 3D Point Cloud Understanding},
  author = {Guofeng Mei and Cristiano Saltori and Fabio Poiesi and Jian Zhang and Elisa Ricci and Nicu Sebe and Qiang Wu},
  year = {2022},
  eprint = {2210.02798},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2210.02798v1},
}