8Schmitt T G, Thomas M, Ettrich N. Analysis and modeling of flooding in urban drainage systems [ J ]. Journal of Hydrology, 2004(299) :300-311.
9Merkel W. International report: performance assessment in the water industry [ J ]. Water science and technology: water supply,2002,2(4) : 151-162.
10Coulibaly H D, Rodriguez M J. Development of performance indicators for small Quebec drinking water utilities[J]. Journal of Enivronmental Management, 2004 (73) : 243-255.
