@misc{indiciae9cb391d65fd4,
  title = {Some chemical relationships among sulfur species and dissolved ferrous iron},
  author = {John David Hem},
  year = {1960},
  doi = {10.3133/wsp1459c},
  url = {https://pubs.usgs.gov/publication/wsp1459C},
  note = {Source identifier: wsp1459C}
}