@misc{indiciaead9547b64e6f,
  title = {The age factor in multiple-discrimination learning by white rats.},
  author = {P E FIELDS},
  year = {1953},
  doi = {10.1037/h0056835},
  url = {https://pubmed.ncbi.nlm.nih.gov/13109057/},
  note = {Source identifier: 13109057}
}