@misc{indiciae6155d7046c5f,
  title = {Age differences in learning and memory on a digit-symbol substitution task.},
  author = {J T Erber},
  year = {1976},
  doi = {10.1080/03610737608257976},
  url = {https://pubmed.ncbi.nlm.nih.gov/1017439/},
  note = {Source identifier: 1017439}
}