@misc{indiciae8a63ea9923c1,
  title = {An historical perspective.},
  author = {E W Martin and J B Richmond},
  year = {1980},
  doi = {10.1111/j.1746-1561.1980.tb07756.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/6445447/},
  note = {Source identifier: 6445447}
}