@misc{indiciae7ba5b18cf03e,
  title = {Geophysics: protons lead the charge.},
  author = {Greg Hirth},
  year = {2006},
  doi = {10.1038/443927a},
  url = {https://pubmed.ncbi.nlm.nih.gov/17066024/},
  note = {Source identifier: 17066024}
}