@misc{indiciaed20e41bdd18e,
  title = {Historical perspectives: 1966.},
  author = {W Ingwersen},
  doi = {10.5326/15473317-37-1-99},
  url = {https://pubmed.ncbi.nlm.nih.gov/11204484/},
  note = {Source identifier: 11204484}
}