@misc{indiciae6d50766dbaab,
  title = {Permafrost and related engineering problems in Alaska},
  author = {Oscar J. Ferrians and Reuben Kachadoorian and Gordon W. Greene},
  year = {1969},
  doi = {10.3133/pp678},
  url = {https://pubs.usgs.gov/publication/pp678},
  note = {Source identifier: pp678}
}