@misc{indiciaedc0df09c919b,
  title = {[Principles of classification].},
  author = {R A Mortensen},
  year = {1993},
  doi = {10.1177/010740839301300401},
  url = {https://pubmed.ncbi.nlm.nih.gov/8122339/},
  note = {Source identifier: 8122339}
}