@misc{indiciae32285a81c835,
  title = {Maps showing posteruption erosion, deposition, and dome growth in Mount St. Helens Crater, Washington, determined by a geographic information system},
  author = {H. H. Mills and G. N. Keating},
  year = {1992},
  doi = {10.3133/i2297},
  url = {https://pubs.usgs.gov/publication/i2297},
  note = {Source identifier: i2297}
}