@misc{indiciae4085c413790f,
  title = {Observing responses in pigeons.},
  author = {R T KELLEHER and W C RIDDLE and L COOK},
  year = {1962},
  doi = {10.1901/jeab.1962.5-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/14454921/},
  note = {Source identifier: 14454921}
}