@misc{indiciae5806d312a9f3, title = {Measurement of soil carbon oxidation state and oxidative ratio by 13 C nuclear magnetic resonance}, author = {W.C. Hockaday and C.A. Masiello and J. T. Randerson and R.J. Smernik and J.A. Baldock and O.A. Chadwick and J.W. Harden}, year = {2009}, doi = {10.1029/2008jg000803}, url = {https://pubs.usgs.gov/publication/70036942}, note = {Source identifier: 70036942} }