Eutrophication study at the Panjiakou-Daheiting Reservoir system, northern Hebei Province, People's Republic of China: Chlorophyll-a model and sources of phosphorus and nitrogen - Domagalski, Joseph; Lin, Chao; Luo, Yang; Kang, Jie; Wang, Shaoming; Brown, Larry; Munn, Mark (Agricultural Water Management, 2007)