@misc{indiciae167b59d9bcbf,
  title = {The significance of observations at active volcanoes; A review and annotated bibliography of studies at Kilauea and Mount St. Helens},
  author = {Thomas L. Wright and Don Swanson},
  year = {1987},
  url = {https://pubs.usgs.gov/publication/70207555},
  note = {Source identifier: 70207555}
}