@misc{indiciaecb78d811ba31,
  title = {Identifying water-quality trends in the Trinity River, Texas, USA, 1969-1992, using sediment cores from Lake Livingston},
  author = {P. C. Van Metre and E. Callender},
  year = {1996},
  doi = {10.1007/s002540050093},
  url = {https://pubs.usgs.gov/publication/70018201},
  note = {Source identifier: 70018201}
}