@misc{indiciae4541ccc05791,
  title = {Fish passage in a western Iowa stream modified by grade control structures},
  author = {M.E. Litvan and C.L. Pierce and T.W. Stewart and C.J. Larson},
  year = {2008},
  doi = {10.1577/m07-097.1},
  url = {https://pubs.usgs.gov/publication/70033249},
  note = {Source identifier: 70033249}
}