@misc{indiciae474f1aa7305d,
  title = {Nutrient inputs to the Laurentian Great Lakes by source and watershed estimated using SPARROW watershed models},
  author = {Dale M. Robertson and David A. Saad},
  year = {2011},
  doi = {10.1111/j.1752-1688.2011.00574.x},
  url = {https://pubs.usgs.gov/publication/70034511},
  note = {Source identifier: 70034511}
}