@misc{indiciae4e78c73ebd08,
  title = {Optical techniques for the determination of nitrate in environmental waters: Guidelines for instrument selection, operation, deployment, maintenance, quality assurance, and data reporting},
  author = {Brian A. Pellerin and Brian A. Bergamaschi and Bryan D. Downing and John Franco Saraceno and Jessica D. Garrett and Lisa D. Olsen},
  year = {2013},
  doi = {10.3133/tm1d5},
  url = {https://pubs.usgs.gov/publication/tm1D5},
  note = {Source identifier: tm1D5}
}