@misc{indiciaeb3da35c1eed5,
  title = {Agricultural conversion without external water and nutrient inputs reduces terrestrial vegetation productivity},
  author = {W. Kolby Smith and Cory C. Cleveland and Sasha C. Reed and Steven W. Running},
  year = {2014},
  doi = {10.1002/2013gl058857},
  url = {https://pubs.usgs.gov/publication/70108020},
  note = {Source identifier: 70108020}
}