@misc{indiciae2a3756ba5b1b,
  title = {Research designs: the historical method.},
  author = {K Barnard},
  doi = {10.1097/00005721-198111000-00012},
  url = {https://pubmed.ncbi.nlm.nih.gov/6795410/},
  note = {Source identifier: 6795410}
}