Witthuhn, B. [P:(DE-HGF)0] ; Klauth, P. [P:(DE-Juel1)VDB764] ; Pernyeszi, T. [P:(DE-HGF)0] ; Vereecken, H. [P:(DE-Juel1)129549] ; Klumpp, E. [P:(DE-Juel1)129484]