Kavehei, Omid [P:(DE-HGF)0] ; Linn, Eike [P:(DE-HGF)0] ; Nielen, Lutz [P:(DE-HGF)0] ; Tappertzhofen, Stefan [P:(DE-HGF)0] ; Skafidas, Efstratios [P:(DE-HGF)0] ; Valov, Ilia [P:(DE-Juel1)131014] ; Waser, R. [P:(DE-Juel1)131022]