@misc{indiciaedb1eaab8caaa,
  title = {The deethylatrazine/atrazine ratio as an indicator of the onset of the spring flush of herbicides into surface water of the Midwestern United States},
  author = {E.M. Thurman and J. D. Fallon},
  year = {1996},
  doi = {10.1080/03067319608045555},
  url = {https://pubs.usgs.gov/publication/70185707},
  note = {Source identifier: 70185707}
}