@misc{indiciaee52dcb08d2a0,
  title = {Measurement of the oxygen isotopic composition of nitrate in seawater and freshwater using the denitrifier method},
  author = {K.L. Casciotti and D.M. Sigman and M. Galanter Hastings and J. K. Böhlke and A. Hilkert},
  year = {2002},
  doi = {10.1021/ac020113w},
  url = {https://pubs.usgs.gov/publication/70185135},
  note = {Source identifier: 70185135}
}