Mutter, Markus [P:(DE-Juel1)157727] ; Mauer, Georg [P:(DE-Juel1)129633] ; Mücke, Robert [P:(DE-Juel1)129641] ; Vassen, Robert [P:(DE-Juel1)129670] ; Back, H. C. [P:(DE-HGF)0] ; Gibmeier, J. [P:(DE-HGF)0]