@misc{indiciaea7b1c475e0c3,
  title = {Nitrogen in rock: Occurrences and biogeochemical implications},
  author = {J.M. Holloway and R.A. Dahlgren},
  year = {2002},
  doi = {10.1029/2002gb001862},
  url = {https://pubs.usgs.gov/publication/70023841},
  note = {Source identifier: 70023841}
}