@misc{indiciae29c8eb4000a4,
  title = {Effects of age and environment on stable carbon isotope ratios in tree rings of riparian Populus},
  author = {Jonathan M. Friedman and Craig A. Stricker and Adam Z Csank and Honghua Zhou},
  year = {2019},
  doi = {10.1016/j.palaeo.2019.03.022},
  url = {https://pubs.usgs.gov/publication/70202840},
  note = {Source identifier: 70202840}
}