@misc{indiciaec42bc05da873,
  title = {The stable isotope geochemistry of acid-sulfate alteration and vein forming alunite},
  author = {R. O. Rye and P. M. Bethke and M.D. Wasserman},
  year = {1991},
  doi = {10.3133/ofr91257},
  url = {https://pubs.usgs.gov/publication/ofr91257},
  note = {Source identifier: ofr91257}
}