@misc{indiciae7a14dc71ddc4,
  title = {The 1989-1990 eruption of Redoubt Volcano, Alaska: impacts on aircraft operations},
  author = {T. J. Casadevall},
  year = {1994},
  doi = {10.1016/0377-0273(94)90038-8},
  url = {https://pubs.usgs.gov/publication/70017560},
  note = {Source identifier: 70017560}
}