6Alan. Water resources management model computer pregram description [ R ]. Canada : Alberta Environment Natural Resources Service Bow Region Water Administration Branch, 1999.
6Alan, Alberta Environment Natural Resources Service Bow Region Water Administration Branch. Water resources management model computer program description [R]. Canada, 1999.
7Alan,Alberta Environment Natural Resources Service BowRegion Water Administration Ranch.Water resources man-agement model computer program description[M].Canada,1999.
8VOLK M,HIRSCHFELD J,DEHNHARDT A,et al.Integrated Ecological-Economic Modelling of Water Pollution Abatement Management Options in the Upper Ems River Basin[J].Ecological Economics,2008,66(1):66-76.
