@misc{indiciaefc5d8d657215,
  title = {Geomorphic classification of Icelandic volcanoes},
  author = {Richard S. Williams and Sigurdur Thorarinsson and Elliot C. Morris},
  year = {1982},
  url = {https://pubs.usgs.gov/publication/70236828},
  note = {Source identifier: 70236828}
}