@misc{indiciaeb3496935d9e8,
  title = {Challenges.},
  author = {R L Tawes},
  year = {1990},
  doi = {10.1016/s0002-9610(05)80294-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/2382766/},
  note = {Source identifier: 2382766}
}