@misc{indiciae98117aac5ef0,
  title = {Volcanic activity in the Aleutian arc},
  author = {R.R. Coats},
  year = {1950},
  doi = {10.3133/b974b},
  url = {https://pubs.usgs.gov/publication/b974B},
  note = {Source identifier: b974B}
}