@misc{indiciae50ac49a3eb4e,
  title = {Seismic sentries.},
  author = {Sarah Simpson},
  year = {2007},
  doi = {10.1038/scientificamerican0107-18b},
  url = {https://pubmed.ncbi.nlm.nih.gov/17186823/},
  note = {Source identifier: 17186823}
}