@misc{indiciae0f0c629dcea7,
  title = {Black clouds and silver linings.},
  author = {W G Austen},
  year = {1971},
  doi = {10.1016/0022-4804(71)90031-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/5090344/},
  note = {Source identifier: 5090344}
}