@misc{indiciae908f4b9cc036,
  title = {Problems of classification--An introduction.},
  author = {D G Edward},
  year = {1967},
  doi = {10.1111/j.1749-6632.1967.tb27637.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/5233806/},
  note = {Source identifier: 5233806}
}