Schrader, M. [P:(DE-Juel1)130150] ; Biel, W. [P:(DE-Juel1)129967] ; Mertens, Ph. [P:(DE-Juel1)4596] ; Krasikov, Yu. [P:(DE-Juel1)130068] ; Panin, A. [P:(DE-Juel1)130117] ; Offermanns, G. [P:(DE-Juel1)133716] ; Remmel, J. [P:(DE-Juel1)133732] ; Volker, K.-U. [P:(DE-HGF)0]