@misc{indiciae2d584bd4abd2,
  title = {The hydrothermal system of Long Valley Caldera, California},
  author = {M.L. Sorey and Robert Edward Lewis and F. H. Olmsted},
  year = {1977},
  doi = {10.3133/ofr77347},
  url = {https://pubs.usgs.gov/publication/ofr77347},
  note = {Source identifier: ofr77347}
}