@misc{indiciaef2e6a59c55ff,
  title = {Antecedent flow conditions and nitrate concentrations in the Mississippi River basin},
  author = {Jennifer C. Murphy and Robert M. Hirsch and Lori A. Sprague},
  year = {2014},
  doi = {10.5194/hessd-10-11451-2013},
  url = {https://pubs.usgs.gov/publication/70048055},
  note = {Source identifier: 70048055}
}