@misc{indiciae0e33b3400935,
  title = {Wanted: sound theory for soft values.},
  author = {M Mäkelä},
  year = {1987},
  doi = {10.1093/fampra/4.3.247-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/3666355/},
  note = {Source identifier: 3666355}
}