@article{polestaranintelligentefficientand,
  title = {Polestar: An Intelligent, Efficient and National-Wide Public Transportation Routing Engine},
  author = {Hao Liu and Ying Li and Yanjie Fu and Huaibo Mei and Jingbo Zhou and Xu Ma and Hui Xiong},
  year = {2020},
  eprint = {2007.07195},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2007.07195v1},
}