@misc{indiciaefa465bf5f52c,
  title = {Single case studies. An introduction.},
  author = {H R Wulff},
  year = {1988},
  doi = {10.3109/00365528809099152},
  url = {https://pubmed.ncbi.nlm.nih.gov/3201145/},
  note = {Source identifier: 3201145}
}