@misc{indiciae7b47b0dd3d52,
  title = {Thermal state of permafrost in North America: A contribution to the international polar year},
  author = {S.L. Smith and V.E. Romanovsky and A.G. Lewkowicz and C.R. Burn and M. Allard and G.D. Clow and K. Yoshikawa and J. Throop},
  year = {2010},
  url = {https://pubs.usgs.gov/publication/70003948},
  note = {Source identifier: 70003948}
}