@misc{indiciae1ef4bc25731c,
  title = {Evaluation and comparison of gross primary production estimates for the Northern Great Plains grasslands},
  author = {Li Zhang and Bruce K. Wylie and Thomas R. Loveland and Eugene A. Fosnight and Larry L. Tieszen and Lei Ji and Tagir Gilmanov},
  year = {2007},
  doi = {10.1016/j.rse.2006.08.012},
  url = {https://pubs.usgs.gov/publication/70033124},
  note = {Source identifier: 70033124}
}