@misc{indiciae1812c2da70a9,
  title = {Seismograms live from around the world},
  author = {Robert L. Woodward and Kaye M. Shedlock and Harold F. Bolton},
  year = {1999},
  doi = {10.3133/fs17699},
  url = {https://pubs.usgs.gov/publication/fs17699},
  note = {Source identifier: fs17699}
}