Pätz, H.-W. [P:(DE-Juel1)16214] ; Berg, M. [P:(DE-Juel1)129176] ; Heil, Th. [P:(DE-Juel1)VDB15506] ; Houben, N. [P:(DE-Juel1)129209] ; Petrick, W. [P:(DE-Juel1)VDB15504] ; Raak, D. [P:(DE-Juel1)129240] ; Volz-Thomas, A. [P:(DE-Juel1)6742]