@misc{indiciaea830b7c4f2e5,
  title = {Robots in the sky.},
  author = {S Cole},
  year = {2000},
  doi = {10.1038/scientificamerican1100-14},
  url = {https://pubmed.ncbi.nlm.nih.gov/11068782/},
  note = {Source identifier: 11068782}
}