@misc{indiciae48e5dcaabca1,
  title = {Chemical equilibria and rates of manganese oxidation},
  author = {John David Hem},
  year = {1963},
  doi = {10.3133/wsp1667a},
  url = {https://pubs.usgs.gov/publication/wsp1667A},
  note = {Source identifier: wsp1667A}
}