1. A relational model of data for large shared data banks;Codd;Communications of the Association of Computing Machinery,1970
2. Estimating constituent loads;Cohn;Water Resources Research,1989
3. EPA, Office of Water, 1997. Guidelines for Preparation of the Comprehensive State Water Quality Assessments. United States Environmental Protection Agency Publication 841B97002a, 161pp.
4. River channel patterns;Leopold;United States Geological Survey Professional Paper,1957
5. National Research Council, 2001. Assessing the TMDL Approach to Water Quality Management. National Academy Press, Washington, DC, 109pp.