Klein, S. [P:(DE-Juel1)VDB5924] ; Houben, L. [P:(DE-Juel1)VDB4944] ; Carius, R. [P:(DE-Juel1)VDB4964] ; Finger, F. [P:(DE-Juel1)130238] ; Fischer, E. V. [P:(DE-Juel1)VDB394]