@misc{indiciae6be89f9c8bc9,
  title = {Cognitive development in object manipulation by infant chimpanzees.},
  author = {Misato Hayashi and Tetsuro Matsuzawa},
  year = {2003},
  doi = {10.1007/s10071-003-0185-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/12905079/},
  note = {Source identifier: 12905079}
}