@misc{indiciaea8c78446189e,
  title = {Biomass accumulation and soil nitrogen availability in an 87-year-old Populus grandidentata chronosequence},
  author = {L.L. White and D.R. Zak and B.V. Barnes},
  year = {2004},
  doi = {10.1016/j.foreco.2003.11.010},
  url = {https://pubs.usgs.gov/publication/70026828},
  note = {Source identifier: 70026828}
}