@misc{indiciae6e250bf1283e,
  title = {Volcanic eruptions of 1980 at Mount St. Helens: The first 100 days},
  author = {B. L. Foxworthy and Mary Hill},
  year = {1982},
  doi = {10.3133/pp1249},
  url = {https://pubs.usgs.gov/publication/pp1249},
  note = {Source identifier: pp1249}
}