@misc{indiciae6cdfad1c1c88,
  title = {Changes in Riparian Vegetation in the Southwestern United States: Repeat Photography at Gaging Stations in Arizona},
  author = {Robert H. Webb and Diane E. Boyer},
  year = {2001},
  doi = {10.3133/ofr01323},
  url = {https://pubs.usgs.gov/publication/ofr01323},
  note = {Source identifier: ofr01323}
}