Kunz, A. [P:(DE-Juel1)VDB72464] ; Schiller, C. [P:(DE-Juel1)VDB1410] ; Rohrer, F. [P:(DE-Juel1)16347] ; Smit, H. G. J. [P:(DE-Juel1)16203] ; Nedelec, P. [P:(DE-HGF)0] ; Spelten, N. [P:(DE-Juel1)129155]