@misc{indiciae71f8e13129dd,
  title = {Metal concentrations in aquatic macrophytes as influenced by soil and acidification},
  author = {D. W. Sparling and T. P. Lowe},
  year = {1998},
  doi = {10.1023/a:1005090224878},
  url = {https://pubs.usgs.gov/publication/5223805},
  note = {Source identifier: 5223805}
}