@misc{indiciae077c9cfbbb1b,
  title = {Change-in-ratio},
  author = {Mark S. Udevitz},
  year = {2013},
  doi = {10.1002/9780470057339.vac015m.pub2},
  url = {https://pubs.usgs.gov/publication/70136249},
  note = {Source identifier: 70136249}
}