@misc{indiciae9bf8e78138b7,
  title = {Nitrosation and nitration of fulvic acid, peat and coal with nitric acid},
  author = {Kevin A. Thorn and Larry G. Cox},
  year = {2016},
  doi = {10.1371/journal.pone.0154981},
  url = {https://pubs.usgs.gov/publication/70170997},
  note = {Source identifier: 70170997}
}