@article{countingpeoplebyestimatingpeopleflows,
  title = {Counting People by Estimating People Flows},
  author = {Weizhe Liu and Mathieu Salzmann and Pascal Fua},
  year = {2020},
  eprint = {2012.00452},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2012.00452v2},
}