Rzehak, Roland [P:(DE-82)005468] ; Leefken, Ansgar [P:(DE-82)005469] ; al-Sibai, Faruk [P:(DE-82)IDM03846] ; Müller-Krumbhaar, Heiner [P:(DE-82)005471] ; Renz, Ulrich [P:(DE-82)005472]