@misc{indiciae028cf7900f39,
  title = {Heavy metal anomalies in the Tinto and Odiel River and estuary system, Spain},
  author = {C.H. Nelson and P. J. Lamothe},
  year = {1993},
  doi = {10.2307/1352597},
  url = {https://pubs.usgs.gov/publication/70017415},
  note = {Source identifier: 70017415}
}