Yoshinobu, T. [P:(DE-HGF)0] ; Ecken, H. [P:(DE-Juel1)VDB5501] ; Ismail, A. B. M. [P:(DE-HGF)0] ; Iwasaki, H. [P:(DE-HGF)0] ; Lüth, H. [P:(DE-Juel1)VDB975] ; Schöning, M. J. [P:(DE-Juel1)128727]