@misc{indiciae9359ec8f233b,
  title = {Leaching characteristics of ash from the May 18, 1980, eruption of Mount St. Helens Volcano, Washington},
  author = {David Burl Smith and Robert A. Zielinski and Howard E. Taylor},
  year = {1982},
  doi = {10.3133/ofr82987},
  url = {https://pubs.usgs.gov/publication/ofr82987},
  note = {Source identifier: ofr82987}
}