@misc{indiciae582e74d6002f,
  title = {Boulder deposits and the retreat of mountain slopes, or ' gully gravure' revisited},
  author = {H. H. Mills},
  year = {1981},
  doi = {10.1086/628628},
  url = {https://pubs.usgs.gov/publication/70012075},
  note = {Source identifier: 70012075}
}