Friedrich, Christoph [P:(DE-Juel1)130644] ; Betzinger, Markus [P:(DE-Juel1)130539] ; Schlipf, Martin [P:(DE-Juel1)130941] ; Blügel, Stefan [P:(DE-Juel1)130548] ; Schindlmayr, Arno [P:(DE-Juel1)130940]