@misc{indiciae1ebf0826a9f5,
  title = {Aerial profiling of terrain to define stream-valley geometry: study report},
  author = {Mukund Desai and William A. Drohan and John W. Hursh and Glenn Mamon and Douglas G. Youmans},
  year = {1976},
  doi = {10.3133/ofr76672},
  url = {https://pubs.usgs.gov/publication/ofr76672},
  note = {Source identifier: ofr76672}
}