@misc{indiciae579169f2dabf,
  title = {Thresholds for protecting Pacific Northwest ecosystems from atmospheric deposition of nitrogen: state of knowledge report},
  author = {Tonnie Cummings and Tamara Blett and Ellen Porter and Linda Geiser and Rick Graw and Jill McMurray and Steven S. Perakis and Regina Rochefort},
  year = {2014},
  url = {https://pubs.usgs.gov/publication/70116360},
  note = {Source identifier: 70116360}
}