Wu, Baohu [P:(DE-Juel1)151161] ; Helminger, M. [P:(DE-HGF)0] ; Pipich, Vitaliy [P:(DE-Juel1)130893] ; Schwahn, Dietmar [P:(DE-Juel1)130962] ; Cölfen, H. [P:(DE-HGF)0]