@misc{indiciae6b7f243a0e18,
  title = {Strong-acid, carboxyl-group structures in fulvic acid from the Suwannee River, Georgia. 1. Minor structures},
  author = {J.A. Leenheer and R.L. Wershaw and M.M. Reddy},
  year = {2002},
  doi = {10.1021/es00002a015},
  url = {https://pubs.usgs.gov/publication/70018756},
  note = {Source identifier: 70018756}
}