Wilken, S. [P:(DE-HGF)0] ; Hoffmann, B. [P:(DE-Juel1)VDB27696] ; Hersch, N. [P:(DE-Juel1)VDB29396] ; Kirchgeßner, N. [P:(DE-HGF)0] ; Dieluweit, S. [P:(DE-Juel1)VDB5493] ; Rubner, W. [P:(DE-Juel1)128837] ; Hoffmann, L. J. [P:(DE-HGF)0] ; Merkel, R. [P:(DE-Juel1)128833] ; Peeken, I. [P:(DE-HGF)0]