@misc{indiciae42ed7230884f,
  title = {Technical note—Relative variability of selected turbidity standards and sensors in use by the U.S. Geological Survey},
  author = {Guy M. Foster and Lindsey R. King and John D. Jastram and John K. Joiner and Brian A. Pellerin and Jennifer L. Graham and Thomas J. Williams},
  year = {2021},
  doi = {10.3133/ofr20211009},
  url = {https://pubs.usgs.gov/publication/ofr20211009},
  note = {Source identifier: ofr20211009}
}