@misc{indiciaed53c01c88774,
  title = {A filtration and column-adsorption system for onsite concentration and fractionation of organic substances from large volumes of water},
  author = {J.A. Leenheer and T.I. Noyes},
  year = {1984},
  doi = {10.3133/wsp2230},
  url = {https://pubs.usgs.gov/publication/wsp2230},
  note = {Source identifier: wsp2230}
}