@article{efficient3dpointcloudfeaturelearningfor,
  title = {Efficient 3D Point Cloud Feature Learning for Large-Scale Place Recognition},
  author = {Le Hui and Mingmei Cheng and Jin Xie and Jian Yang},
  year = {2021},
  eprint = {2101.02374},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2101.02374v1},
}