Monkenbusch, Michael [P:(DE-Juel1)130849] ; Stadler, Andreas [P:(DE-Juel1)140278] ; Biehl, Ralf [P:(DE-Juel1)130542] ; Olivier, J. [P:(DE-HGF)0] ; Richter, Dieter [P:(DE-Juel1)130917]