Nguyen, Van Nhu [P:(DE-Juel1)143789] ; Deja, Robert [P:(DE-Juel1)129838] ; Peters, Roland [P:(DE-Juel1)129901] ; Blum, Ludger [P:(DE-Juel1)129828] ; Stolten, Detlef [P:(DE-Juel1)129928]