Zhao, Y [P:(DE-Juel1)143969] ; Zimmermann, Egon [P:(DE-Juel1)133962] ; Huisman, J A [P:(DE-Juel1)129472] ; Treichel, A [P:(DE-Juel1)144273] ; Wolters, Bernd [P:(DE-Juel1)133958] ; van Waasen, S [P:(DE-Juel1)142562] ; Kemna, A. [P:(DE-HGF)0]