@misc{indiciae70004370cf71,
  title = {Monitoring super-volcanoes: Geophysical and geochemical signals at Yellowstone and other large caldera systems},
  author = {Jacob B. Lowenstern and Robert B. Smith and David P. Hill},
  year = {2006},
  doi = {10.1098/rsta.2006.1813},
  url = {https://pubs.usgs.gov/publication/70028481},
  note = {Source identifier: 70028481}
}