Szot, K. [P:(DE-Juel1)VDB2799] ; Speier, W. [P:(DE-Juel1)125382] ; Carius, R. [P:(DE-Juel1)VDB4964] ; Zastrow, U. [P:(DE-Juel1)130309] ; Beyer, W. [P:(DE-Juel1)VDB5907]