@misc{indiciae40d90291e30a,
  title = {Monitoring and verifying changes of organic carbon in soil},
  author = {W.M. Post and R. C. Izaurralde and L. K. Mann and Norman B. Bliss},
  year = {2001},
  doi = {10.1023/a:1017514802028},
  url = {https://pubs.usgs.gov/publication/70159109},
  note = {Source identifier: 70159109}
}