1. Aiken, G.R., McKnight, D.M., Wershaw, R.L., MacCarthy, P. (Eds.), 1985. Humic substances in soil, sediment and water: Geochemistry, isolation and characterization, Wiley, New York
2. The “unit world” model: a proposed uniform model to prioritize environmental hazards of metals and inorganic metal compounds;Allen;Int. Council Metals Environ.,2000
3. APHA, AWWA, WEF. 1995. Standard Methods for the Examination of Water and Wastewater, 19th ed. American Public Health Association, Washington, DC
4. The environmental chemistry and toxicology of silver – Editorial;Andren;Environ. Toxicol. Chem.,1999
5. Structural chemistry and geochemistry of silver–sulfur compounds: critical review;Bell;Environ. Toxicol. Chem.,1999