@misc{indiciae549eee3bd55a,
  title = {Inexpensive laboratory-constructed nephelometer.},
  author = {T L Smith and L D Witter},
  year = {1982},
  doi = {10.1128/aem.44.6.1476-1478.1982},
  url = {https://pubmed.ncbi.nlm.nih.gov/7159090/},
  note = {Source identifier: 7159090}
}