Schäfer, Dominik [P:(DE-Juel1)171824] ; Janssen, Tomke [P:(DE-HGF)0] ; Fang, Qingping [P:(DE-Juel1)145945] ; Mertens, Frank [P:(DE-HGF)0] ; Blum, Ludger [P:(DE-Juel1)129828]