@misc{indiciaed7f2e078b2c1,
  title = {Global patterns of the isotopic composition of soil and plant nitrogen},
  author = {Ronald Amundson and A.T. Austin and E.A.G. Schuur and K. Yoo and V. Matzek and C. Kendall and A. Uebersax and D. Brenner and W.T. Baisden},
  year = {2003},
  doi = {10.1029/2002gb001903},
  url = {https://pubs.usgs.gov/publication/70025979},
  note = {Source identifier: 70025979}
}