@misc{indiciae4fb5aed3135c,
  title = {Seven-year phenological record of the Alaskan ecoregions derived from advanced very high resolution radiometer normalized difference vegetation index data},
  author = {Carl J. Markon},
  year = {2001},
  doi = {10.3133/ofr0111},
  url = {https://pubs.usgs.gov/publication/ofr0111},
  note = {Source identifier: ofr0111}
}