@misc{indiciae98a13cb57e94,
  title = {Determination of Fe(III) and Fe(II) in oxalate extracts of sediment},
  author = {Elizabeth J.P. Phillips and Derek R. Lovley},
  year = {1987},
  doi = {10.2136/sssaj1987.03615995005100040021x},
  url = {https://pubs.usgs.gov/publication/70014208},
  note = {Source identifier: 70014208}
}