Szot, K. [P:(DE-Juel1)VDB2799] ; Hoffmann, S. [P:(DE-Juel1)VDB630] ; Speier, W. [P:(DE-Juel1)125382] ; Breuer, U. [P:(DE-Juel1)VDB2782] ; Siegert, M. [P:(DE-Juel1)VDB2542] ; Waser, R. [P:(DE-Juel1)131022]