@misc{indiciaee94d52599b9b,
  title = {Evaluation of a mallard HSI model for the Lower Mississippi Valley},
  author = {D.J. Twedt and Michael W. Brown and James R. Nassar},
  year = {1997},
  url = {https://pubs.usgs.gov/publication/5223274},
  note = {Source identifier: 5223274}
}