@misc{indiciae768e5a2c6e15,
  title = {Progressive discrimination learning in platyrrhine monkeys.},
  author = {W F SHELL and A J RIOPELLE},
  year = {1958},
  doi = {10.1037/h0042256},
  url = {https://pubmed.ncbi.nlm.nih.gov/13575607/},
  note = {Source identifier: 13575607}
}