Mangold, A. [P:(DE-Juel1)VDB13551] ; Krämer, M. [P:(DE-Juel1)129131] ; Möhler, O. [P:(DE-HGF)0] ; Büttner, S. [P:(DE-HGF)0] ; Saathoff, H. [P:(DE-HGF)0] ; Stetzer, O. [P:(DE-HGF)0] ; Wagner, R. [P:(DE-HGF)0] ; Schurath, U. [P:(DE-HGF)0] ; Ebert, V. [P:(DE-HGF)0] ; Giesemann, C. [P:(DE-HGF)0] ; Teichert, H. [P:(DE-HGF)0]