@article{pyfeatpythonfacialexpressionanalysis,
  title = {Py-Feat: Python Facial Expression Analysis Toolbox},
  author = {Jin Hyun Cheong and Eshin Jolly and Tiankang Xie and Sophie Byrne and Matthew Kenney and Luke J. Chang},
  year = {2021},
  eprint = {2104.03509},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2104.03509v4},
}