• The Danube River Basin District 

      Sommerwerk, Nike; Hein, Thomas; Schneider-Jakoby, Martin; Baumgartner, Christian; Ostojić, Ana; Paunović, Momir; Bloesch, Jürg; Siber, Rosi; Tockner, Klement; Tockner, Klement; Uehlinger, Urs; Robinson, Christopher T. (Academic Press, 2009)