@misc{indiciae2edfadb76d90,
  title = {Economic comparison of two types of automatic water-quality monitors},
  author = {Max Katzenbach},
  year = {1988},
  doi = {10.3133/wri874232},
  url = {https://pubs.usgs.gov/publication/wri874232},
  note = {Source identifier: wri874232}
}