The german article can be found 
here
Press report on the project (2016-05-06)
"Warum wir Steuern zahlen"
University of Vienna
Dr.-Karl-Lueger-Ring 1
1010 Vienna
T: +43-1-4277-0
Dr.-Karl-Lueger-Ring 1
1010 Vienna
T: +43-1-4277-0
"Warum wir Steuern zahlen"
The german article can be found here