@misc{indiciae0ddb4f333a76,
  title = {Phosphorus, iron, and manganese distribution in sediment cores of six Wisconsin lakes},
  author = {Gilbert C. Bortleson and G. Fred Lee},
  year = {2003},
  doi = {10.4319/lo.1974.19.5.0794},
  url = {https://pubs.usgs.gov/publication/70246996},
  note = {Source identifier: 70246996}
}