V. R. C. Monteiro, C. M. de S. Vidal, J. B. de Sousa, and G. S. Cavallini, “Tertiary Treatment of Sanitary Sewage from Polishing Pond Using System of Coagulation/Precipitation Followed by Ultraviolet Radiation”, Semin., Exact Tech. Scienc., vol. 34, no. 1, pp. 67–80, Sep. 2013.