@misc{indiciaec458889f8574,
  title = {Concurrent discrimination learning in chimpanzees.},
  author = {K J HAYES and R THOMPSON and C HAYES},
  year = {1953},
  doi = {10.1037/h0055072},
  url = {https://pubmed.ncbi.nlm.nih.gov/13044868/},
  note = {Source identifier: 13044868}
}