@misc{indiciae27361161f38d,
  title = {Changes in the water surface profile of the Colorado River in Grand Canyon, Arizona, between 1923 and 2000},
  author = {Christopher S. Magirl and Robert H. Webb and Peter G. Griffiths},
  year = {2005},
  doi = {10.1029/2003wr002519},
  url = {https://pubs.usgs.gov/publication/70171402},
  note = {Source identifier: 70171402}
}