@misc{indiciaefa16ac0ba9cf,
  title = {Ballbots.},
  author = {Ralph Hollis},
  year = {2006},
  doi = {10.1038/scientificamerican1006-72},
  url = {https://pubmed.ncbi.nlm.nih.gov/16989483/},
  note = {Source identifier: 16989483}
}