@misc{indiciae3cd5f9404657,
  title = {Beaver assisted river valley formation},
  author = {Cherie J. Westbrook and D.J. Cooper and Bruce W. Baker},
  year = {2011},
  doi = {10.1002/rra.1359},
  url = {https://pubs.usgs.gov/publication/70036703},
  note = {Source identifier: 70036703}
}