1. Effect of Calcium Ion on Chemistry and Disinfection Efficiency of Free Chlorine;Anotai,1996
2. Secondary effluent disinfection: PAA long term efficiency;Antonelli;Environ. Sci. Technol.,2006
3. Metodi analitici per il controllo della qualità delle acque. Rome, Italy;APAT-IRSA/CNR,2003
4. Standard Methods for the Examination of Water and Wastewater;APHA/AWA/WEF,2012
5. Nonlinear Regression Analysis and Its Applications;Bates,1988