@misc{indiciaeb58423108812,
  title = {Differential changes in mental abilities in old age.},
  author = {L J KAMIN},
  year = {1957},
  doi = {10.1093/geronj/12.1.66},
  url = {https://pubmed.ncbi.nlm.nih.gov/13398607/},
  note = {Source identifier: 13398607}
}