@misc{indiciaee4c9c3e83760,
  title = {Volcanic-hazard zonation for Mount St. Helens, Washington, 1995},
  author = {E.W. Wolfe and T.C. Pierson},
  year = {1995},
  doi = {10.3133/ofr95497},
  url = {https://pubs.usgs.gov/publication/ofr95497},
  note = {Source identifier: ofr95497}
}