@misc{indiciae5b61a8d80601,
  title = {Introductory remarks.},
  author = {H F BLUM},
  year = {1957},
  doi = {10.1111/j.1749-6632.1957.tb49661.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/13479003/},
  note = {Source identifier: 13479003}
}