@misc{indiciaedf876d30cdbd,
  title = {Twenty years ago.},
  author = {R R MacIntosh},
  year = {1968},
  doi = {10.1111/j.1365-2044.1968.tb00056.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4869667/},
  note = {Source identifier: 4869667}
}