Eickermann, T. [P:(DE-Juel1)132091] ; Frings, W. [P:(DE-Juel1)132108] ; Posse, S. [P:(DE-Juel1)VDB1280] ; Goebbels, G. [P:(DE-Juel1)VDB6692] ; Völpel, R. [P:(DE-Juel1)VDB6796]