@misc{indiciaecc939c2c76f6,
  title = {Compositions, origins, emission rates and atmospheric impacts of volcanic gases},
  author = {Robert B. Symonds},
  year = {1998},
  doi = {10.3133/ofr98776},
  url = {https://pubs.usgs.gov/publication/ofr98776},
  note = {Source identifier: ofr98776}
}