@misc{indiciaef0671d10e3a4,
  title = {[Non-verbal behavior: its function and meaning].},
  author = {M P Duyx and E J Beumkes and M A Eijkman},
  year = {1988},
  url = {https://pubmed.ncbi.nlm.nih.gov/3269944/},
  note = {Source identifier: 3269944}
}