1. Aiken G.R., McKnight D.M., Wershaw R.L. and MacCarthy P. (1985) Humic Substances in Soil, Sediment, and Water—Geochemistry, Isolation, and Characterization. John Wiley, New York.
2. Bowles E.C., Antweiler R.C. and MacCarthy P. (1989) Acid-Base Titration and Hydrolysis of Fulvic Acid from the Suwannee River, USGS Water-Open File Report 87–557, pp. 209–229. U.S. Geological Survey.
3. High molecular weight material in Baltic seawater;Brown;Mar. Chem.,1975
4. Carter M.C. (1993) Analysis and modeling of the impacts of background organic matter on TCE adsorption by activated carbon. PhD Dissertation, University of Michigan, Ann Arbor, MI.
5. Effects of background dissolved organic matter on TCE adsorption by GAC;Carter;J. AWWA,1992