@misc{indiciaead696c32c712,
  title = {Observing behavior in a computer game.},
  author = {D A Case and B O Ploog and E Fantino},
  year = {1990},
  doi = {10.1901/jeab.1990.54-185},
  url = {https://pubmed.ncbi.nlm.nih.gov/2103581/},
  note = {Source identifier: 2103581}
}