1. De Leer EWB, Sinninghe Damste JS, Erkelens C, De Galan L (1985) Environ Sci Technol 19: 512
2. WHO (2000) International Programme on Chemical Safety - Environmental health criteria 216: Disinfectants and disinfectant by-products. World Health Organization, Geneva
3. WHO (1993) International Programme on Chemical Safety - Guidelines for drinking-water quality, vol 1: Recommendations. World Health Organization, Geneva
4. Cowman GA, Singer PC (1996) Environ Sci Technol 30: 16
5. Boyce SD, Hornig JF (1983) Environ Sci Technol 17: 202