@article{44771,
  author = {Susana Bernal and Lars Hedin and Gene Likens and Stefan Gerber and Don Buso},
  title = {Complex response of the forest nitrogen cycle to climate change},
  year = {2012},
  journal = {Proceedings of the National Academy of Sciences},
  volume = {109},
  number = {9},
  pages = {3406{\textendash}3411},
  url = {http://www.pnas.org/content/109/9/3406.short},
  language = {eng},
}