@misc{indiciae791a6692dc33,
  title = {Paleoclimate and Amerindians: Evidence from stable isotopes and atmospheric circulation},
  author = {M.B. Lovvorn and G.C. Frison and L.L. Tieszen},
  year = {2001},
  doi = {10.1073/pnas.041616098},
  url = {https://pubs.usgs.gov/publication/70023635},
  note = {Source identifier: 70023635}
}