@misc{indiciae3d81fdf9be6b,
  title = {Carbon cycle observations: Gaps threaten climate mitigation policies},
  author = {R. Birdsey and N. Bates and M. Behrenfeld and K. Davis and S.C. Doney and R. Feely and D. Hansell and L. Heath and E. Kasischke and H. Kheshgi and B. Law and C. Lee and A. D. McGuire and P. Raymond and C.J. Tucker},
  year = {2011},
  doi = {10.1029/2009eo340005},
  url = {https://pubs.usgs.gov/publication/70036572},
  note = {Source identifier: 70036572}
}