@misc{indiciaefa13aeb34e66,
  title = {Subsidence potential in shale and crystalline rocks},
  author = {John F. Abel and Fitzhugh T. Lee},
  year = {1980},
  doi = {10.3133/ofr801072},
  url = {https://pubs.usgs.gov/publication/ofr801072},
  note = {Source identifier: ofr801072}
}