@misc{indiciae93b156adf21d,
  title = {An inventory and evaluation of biological investigations that relate to stream-water quality in the upper Illinois River basin of Illinois, Indiana, and Wisconsin},
  author = {D.W. Steffeck and Robert G. Striegl},
  year = {1989},
  doi = {10.3133/wri894041},
  url = {https://pubs.usgs.gov/publication/wri894041},
  note = {Source identifier: wri894041}
}