@misc{indiciae275a6022c410,
  title = {Numerical memory span in a chimpanzee.},
  author = {N Kawai and T Matsuzawa},
  year = {2000},
  doi = {10.1038/47405},
  url = {https://pubmed.ncbi.nlm.nih.gov/10638743/},
  note = {Source identifier: 10638743}
}