@misc{indiciaea1fa6d260a36,
  title = {\δ 15 N constraints on long-term nitrogen balances in temperate forests},
  author = {S.S. Perakis and E.R. Sinkhorn and J.E. Compton},
  year = {2011},
  doi = {10.1007/s00442-011-2016-y},
  url = {https://pubs.usgs.gov/publication/70034567},
  note = {Source identifier: 70034567}
}