@misc{indiciae3e297a95b6ac,
  title = {Age changes and age differences.},
  author = {K W Schaie},
  year = {1967},
  doi = {10.1093/geront/7.2\_part\_1.128},
  url = {https://pubmed.ncbi.nlm.nih.gov/6041912/},
  note = {Source identifier: 6041912}
}