@misc{indiciae3e301e4c29a0,
  title = {The hydrothermal system of Long Valley Caldera, California},
  author = {M.L. Sorey and Robert Edward Lewis and F. H. Olmsted},
  year = {1978},
  doi = {10.3133/pp1044a},
  url = {https://pubs.usgs.gov/publication/pp1044A},
  note = {Source identifier: pp1044A}
}