@misc{indiciae3b24b31900ac,
  title = {The case study method: a research tool.},
  author = {K Barnard},
  doi = {10.1097/00005721-198301000-00011},
  url = {https://pubmed.ncbi.nlm.nih.gov/6401341/},
  note = {Source identifier: 6401341}
}