@misc{indiciae07cfd51f9bf5,
  title = {Conditional discrimination learning in the pigeon.},
  author = {D G Born and M E Snow and E W Herbert},
  year = {1969},
  doi = {10.1901/jeab.1969.12-119},
  url = {https://pubmed.ncbi.nlm.nih.gov/16811332/},
  note = {Source identifier: 16811332}
}