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References

Batalla, R.J., Gomez C., nd  Kondolf M. 200xRiver impoundment and changes in flow regime, Ebro River Basin, Northeastern Spain. Available at http://www2.uah.es/econ/Papers/BatallaGomezKondolf03.pdf

Finnish Environment Institute: Regulated lakes and rivers Available at  http://www.environment.fi/default.asp?contentid=356128&lan=EN

Martunnen et al. 2006:  http://www.ewaonline.de/journal/2006_05.pdf

Rafael Sánchez Navarro et al., “Hydrological impacts affecting endangered fish species: a Spanish case study,” River Research and Applications 23, no. 5 (June 1, 2007): 511-523.