@misc{indiciae6c569d077a1a,
  title = {The effect of sample hydration on 13C CPMAS NMR spectra of fulvic acids},
  author = {Patrick G. Hatcher and Michael A. Wilson},
  year = {1991},
  doi = {10.1016/0146-6380(91)90092-x},
  url = {https://pubs.usgs.gov/publication/70015032},
  note = {Source identifier: 70015032}
}