@misc{indiciae65b53f7a58fc,
  title = {Physiographic diagrams of Mount St. Helens, Washington showing changes in its summit crater, summer 1980},
  author = {T. R. Alpha and J.G. Moore and J. M. Morley and D.R. Jones},
  year = {1981},
  doi = {10.3133/mf1279},
  url = {https://pubs.usgs.gov/publication/mf1279},
  note = {Source identifier: mf1279}
}