@misc{indiciae915a09d00113,
  title = {Effects of volcanism on the glaciers of Mount St. Helens},
  author = {Melinda M. Brugman and Austin Post},
  year = {1981},
  doi = {10.3133/cir850d},
  url = {https://pubs.usgs.gov/publication/cir850D},
  note = {Source identifier: cir850D}
}