@misc{indiciae9233ed5ff817,
  title = {Pingos in the Brooks Range, northern Alaska, U.S.A.},
  author = {T. D. Hamilton and Curtis M. Obi},
  year = {1982},
  doi = {10.2307/1550810},
  url = {https://pubs.usgs.gov/publication/70011833},
  note = {Source identifier: 70011833}
}