Bussmann, N. [P:(DE-Juel1)VDB2188] ; Engels, R. [P:(DE-Juel1)133882] ; Fuss, L. [P:(DE-Juel1)VDB2189] ; Kemmerling, F. G. [P:(DE-Juel1)VDB5679] ; Reinartz, R. [P:(DE-Juel1)VDB2190] ; Langen, K. J. [P:(DE-Juel1)131777] ; Schelten, J. [P:(DE-Juel1)VDB2184] ; Ziemons, K. [P:(DE-Juel1)VDB1841]