1. Minear, R.A., Amy, G.L.: Water Disinfection and Natural Organic Matter: History and Overview. In: Water Disinfection and Natural Organic Matter: Characterisation and Control, R.A. Minear and G.L. Amy (Eds.). Amer. Chem. Soc., Washington 1996, p.1.
2. Glaser, H.T., Edzwald, J.K.: Coagulation and Direct Filtration of Humic Substances with Polyethyleneimine. Environ. Sci. Technol. 13 (1979) 299.
3. Jackson, G.E.: Granular Media Filtration in Water and Wastewater Treatment, Part 2. CRC Critical Reviews in Environmental Control, Vol.11. CRC Press, Boca Raton, Florida 1980, p. 1.
4. Schlauch, R.M.: Coagulation for Gravity Type Clarification and Thickening. In: Poly-electrolytes for Water and Wastewater Treatment, W.K. Schwoyer (Ed.). CRC Press, Boca Raton, Florida 1981, p. 9.
5. Amy, G.L., Chadik, P.A.: Cationic Polyelectrolytes as Primary Coagulants for Removing Trihalomethane Precursors. J. Amer. Water Works Assoc. 75 (1983) 52.