@misc{indiciae90650152a5fe,
  title = {Evaluation of landslide hazards with ground-penetrating radar, Lake Michigan coast},
  author = {Walter A. Barnhardt and Bruce E. Jaffe and Robert Kayen},
  year = {1999},
  url = {https://pubs.usgs.gov/publication/70185076},
  note = {Source identifier: 70185076}
}