@misc{indiciae469e380759ea,
  title = {SLOPE; A BASIC program to compute the gravitational stress within a finite slope using a DOS-based PC computer},
  author = {P. S. Powers and W. Z. Savage},
  year = {1993},
  doi = {10.3133/ofr93546},
  url = {https://pubs.usgs.gov/publication/ofr93546},
  note = {Source identifier: ofr93546}
}