@misc{indiciae98b45af881c0,
  title = {Counting behavior in baboons: an error-contingency reinforcement schedule.},
  author = {P K Levison and J D Findley},
  year = {1967},
  doi = {10.2466/pr0.1967.20.2.393},
  url = {https://pubmed.ncbi.nlm.nih.gov/4962990/},
  note = {Source identifier: 4962990}
}