@misc{indiciaefeec7b7a93e3,
  title = {ARITHMETIC BEHAVIOR IN CHIMPANZEES.},
  author = {C B FERSTER},
  year = {1964},
  doi = {10.1038/scientificamerican0564-98},
  url = {https://pubmed.ncbi.nlm.nih.gov/14154103/},
  note = {Source identifier: 14154103}
}