@misc{indiciae0d773d576cda,
  title = {Water velocity and the nature of critical flow in large rapids on the Colorado River, Utah},
  author = {Christopher S. Magirl and Jeffrey W. Gartner and Graeme M. Smart and Robert H. Webb},
  year = {2009},
  doi = {10.1029/2009wr007731},
  url = {https://pubs.usgs.gov/publication/70034447},
  note = {Source identifier: 70034447}
}