@misc{indiciaef5b708c5cf2d,
  title = {Geology and ground-water hydrology of Spirit Lake blockage, Mount St. Helens, Washington, with implications for lake retention},
  author = {Harry X. Glicken and William Meyer and Martha A. Sabol},
  year = {1989},
  doi = {10.3133/b1789},
  url = {https://pubs.usgs.gov/publication/b1789},
  note = {Source identifier: b1789}
}