@misc{indiciae63f43bac1c3d,
  title = {A bacterial method for the nitrogen isotopic analysis of nitrate in seawater and freshwater},
  author = {D.M. Sigman and K.L. Casciotti and M. Andreani and C. Barford and M. Galanter and J.K. Böhlke},
  year = {2001},
  doi = {10.1021/ac010088e},
  url = {https://pubs.usgs.gov/publication/70185192},
  note = {Source identifier: 70185192}
}