Kanter, H. J. [P:(DE-HGF)0] ; Mohnen, V. A. [P:(DE-HGF)0] ; Volz-Thomas, A. [P:(DE-Juel1)6742] ; Junkermann, W. [P:(DE-HGF)0] ; Glaser, K. [P:(DE-HGF)0] ; Weitkamp, H. [P:(DE-HGF)0] ; Slemr, E. C. [P:(DE-HGF)0]