@misc{indiciae87aecc8188d7,
  title = {Solutions of patterned string problems by young gorillas.},
  author = {A H RIESEN and B GREENBERG and A S GRANSTON and R L FANTZ},
  year = {1953},
  doi = {10.1037/h0057069},
  url = {https://pubmed.ncbi.nlm.nih.gov/13034947/},
  note = {Source identifier: 13034947}
}