@misc{indiciae7ac0378713cf,
  title = {Playing the numbers.},
  author = {P Wallich},
  year = {1990},
  doi = {10.1038/scientificamerican0290-23b},
  url = {https://pubmed.ncbi.nlm.nih.gov/2296713/},
  note = {Source identifier: 2296713}
}