@misc{indiciae9833fcdcc43e,
  title = {The oxygen-18 isotope approach for measuring aquatic metabolism in high-productivity waters},
  author = {Craig R. Tobias and John Karl Bohlke and Judson W. Harvey},
  year = {2007},
  doi = {10.4319/lo.2007.52.4.1439},
  url = {https://pubs.usgs.gov/publication/70030850},
  note = {Source identifier: 70030850}
}