Massalovitch, S. [P:(DE-Juel1)VDB1018] ; Ioffe, A. [P:(DE-Juel1)130729] ; Küssel, E. [P:(DE-Juel1)VDB883] ; Schlapp, M. [P:(DE-Juel1)VDB1415] ; von Seggern, H. [P:(DE-HGF)0] ; Brückel, T. [P:(DE-Juel1)130572]