Walter, A. [P:(DE-Juel1)VDB2595] ; Spies, H. [P:(DE-Juel1)VDB3187] ; Terjung, S. [P:(DE-Juel1)VDB7943] ; Kuesters, R. [P:(DE-Juel1)VDB7944] ; Kirchgeßner, N. [P:(DE-Juel1)VDB8902] ; Schurr, U. [P:(DE-Juel1)129402]