Petzold, K. [P:(DE-Juel1)VDB57921] ; Pätz, H.-W. [P:(DE-Juel1)16214] ; Smit, H. [P:(DE-Juel1)16203] ; Thomas, K. [P:(DE-Juel1)5373] ; Volz-Thomas, A. [P:(DE-Juel1)6742] ; Wahner, A. [P:(DE-Juel1)16324] ; Schneider, Ch. [P:(DE-HGF)0]