@misc{indiciae56212a3cd3ce,
  title = {Use of 13C NMR and FTIR for elucidation of degradation pathways during natural litter decomposition and compositing. IV. Characterization of humic and fulvic acids extracted from senescent leaves},
  author = {Robert L. Wershaw and K. R. Kennedy},
  year = {1998},
  url = {https://pubs.usgs.gov/publication/70198545},
  note = {Source identifier: 70198545}
}