@misc{indiciae2e43a94f929f,
  title = {Measuring facial expressions by computer image analysis.},
  author = {M S Bartlett and J C Hager and P Ekman and T J Sejnowski},
  year = {1999},
  doi = {10.1017/s0048577299971664},
  url = {https://pubmed.ncbi.nlm.nih.gov/10194972/},
  note = {Source identifier: 10194972}
}