1. Standard Methods for the Examination of Water and Wastewater;American Public Health Association (APHA),1998
2. Fundamentals and Control of Nitrification in Chloraminated Drinking Water Distribution Systems;American Water Works Association (AWWA),2006
3. Seventh report to the corrosion research committee of the institute of metals;Bengough;Journal of the Institute of Metals,1924
4. Il calcolo delle assicurazioni su gruppi di teste;Bonferroni,1935
5. Legionella infection risk from domestic hot water;Borella;Emerging Infectious Diseases,2004