?url_ver=Z39.88-2004&rft_id=10.1109%2FNatPC.2011.6136345&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=T.D.&rft.au=Asfaw%2C+T.D.&rft.aulast=Asfaw&rft.date=2011&rft.title=Parameters+estimation+and+rule+curve+development+of+cascade+hydropower+reservoirs&rft.isbn=9781457718847&rft.genre=proceeding