About HUMPESCH U H
About OEsterreichischen Akademie der Wissenschaften
About DOKULIL M
About OEsterreichischen Akademie der Wissenschaften
About HERZIG A
About OEsterreichischen Akademie der Wissenschaften
About ELLIOTT J M
About Freshwater Biological Assoc., England
About Oesterreichische Wasserwirtschaft
About water pollution
About environmental impact
About Water pollution in general
About Power generation in general
About 地表水
About 環境生態学