@misc{indiciaee83ca281139e,
  title = {Permafrost, the active layer, and changing climate},
  author = {Arthur H. Lachenbruch},
  year = {1994},
  doi = {10.3133/ofr94694},
  url = {https://pubs.usgs.gov/publication/ofr94694},
  note = {Source identifier: ofr94694}
}