@misc{indiciaec5aafe61801d,
  title = {Order of functionality loss during photodegradation of aquatic humic substances},
  author = {Kevin A. Thorn and Steven J. Younger and Larry G. Cox},
  year = {2009},
  doi = {10.2134/jeq2009.0408},
  url = {https://pubs.usgs.gov/publication/70004019},
  note = {Source identifier: 70004019}
}