@misc{indiciaea5e89067196a,
  title = {Progress in the application of landform analysis in studies of semiarid erosion},
  author = {Stanley Alfred Schumm and R. F. Hadley},
  year = {1961},
  doi = {10.3133/cir437},
  url = {https://pubs.usgs.gov/publication/cir437},
  note = {Source identifier: cir437}
}