About the secondary pollution of water during its treatment

Holodkevich S. V., Viktorovskii I. V., Zuzin I. A. (1997). Effect of generation of organic substances -pollutants at natural water disinfection in the processes of water treatment. Ecological Chemistry. 6 (4). P. 230.240.

Orlov D. S. (1985). Chemistry of soils. MGU (Moscow State University publishing house). pp. 287.

Plotnikova T. A., Orlova N. E. (1984). Usage of the modified Ponomareva -Plotnikova scheme for determination of composition, nature and properties of humic substances in soils. Soil Science. N 8. P. 120-130.

Soniassy R., Sandra P., Schlett C. (1995). The analysis of water: organic microimpurities (practical manual). (Translation from English) St-Petersburg. pp. 248.