@misc{indiciae1f3b06fcc57d,
  title = {Volcanic emanations},
  author = {D. E. White and Gerald A. Waring},
  year = {1963},
  doi = {10.3133/pp440k},
  url = {https://pubs.usgs.gov/publication/pp440K},
  note = {Source identifier: pp440K}
}