Fruhner, Lisa [P:(DE-Juel1)169361] ; Kruteva, Margarita [P:(DE-Juel1)130777] ; Allgaier, J. [P:(DE-Juel1)130501] ; Pyckhout-Hintzen, Wim [P:(DE-Juel1)130902] ; Koll, R. [P:(DE-HGF)0] ; Heller, H. [P:(DE-HGF)0] ; Feld, A. [P:(DE-HGF)0] ; Weller, H. [P:(DE-HGF)0]