@misc{indiciaed423628d5c04,
  title = {Isolation and chemical characterization of dissolved and colloidal organic matter},
  author = {G. Aiken and J. Leenheer},
  year = {2006},
  doi = {10.1080/02757549308035305},
  url = {https://pubs.usgs.gov/publication/70017896},
  note = {Source identifier: 70017896}
}