@misc{indiciae896da60687d8,
  title = {Problem-solving behavior of monkeys as a function of work variables.},
  author = {R T DAVIS},
  year = {1956},
  doi = {10.1037/h0046849},
  url = {https://pubmed.ncbi.nlm.nih.gov/13376762/},
  note = {Source identifier: 13376762}
}