@misc{indiciae040d4234a0d8,
  title = {Investigators share improved understanding of the North American carbon cycle},
  author = {R.A. Birdsey and R. Cook and S. Denning and P. Griffith and B. Law and J. Masek and A. Michalak and S. Ogle and D. Ojima and Y. Pan and C. Sabine and E. Sheffner and E. Sundquist},
  year = {2007},
  url = {https://pubs.usgs.gov/publication/70029781},
  note = {Source identifier: 70029781}
}