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by Sigee, David C.
by Robarts, R. D; Rothwell, M. L. -- National Hydrology Research Institute (Canada); Rawson Academy of Aquatic Science -- NHRI Symposium on Aquatic Ecosystems in Semi-arid Regions (1990 : Saskatoon, Sask.).
by Bowden, M. J. (Michael Joseph). -- North Canterbury Catchment Board and Regional Water Board (Christchurch, N.Z.) Resource Investigations Division.
by Sladecek, V. -- International Association of Theoretical and Applied Limnology
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