For more on the confluence of the Urft see Matthias Kufeld, Joachim Lange, Bernd Hausmann. "Das Einzugsgebiet der Rur"(pdf; 10.54 MB) (in German). pp. 57 under (from "Das Wasser aus der Urfttalsperre…"). Retrieved 15 Feb 2014.{{cite web}}: CS1 maint: multiple names: authors list (link)
