@misc{indiciaed21f7bdcd8ca,
  title = {Ecosystem approach to a global nitrous oxide budget},
  author = {Matson, P. A. and Vitousek, P. M.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19910043544},
  note = {Source identifier: 19910043544}
}