@misc{indiciae7b9aad78af37,
  title = {Determination of the total oxygen isotopic composition of nitrate and the calibration of a Δ17Ο nitrate reference material},
  author = {Greg Michalski and Joel Savarino and J.K. Böhlke and Mark Thiemens},
  year = {2002},
  doi = {10.1021/ac0256282},
  url = {https://pubs.usgs.gov/publication/70185173},
  note = {Source identifier: 70185173}
}