Steinberger-Wilckens, R. [P:(DE-Juel1)VDB9342] ; Blum, L. [P:(DE-Juel1)129828] ; Buchkremer, H.P. [P:(DE-Juel1)129594] ; Haart, L.G.J. de [P:(DE-Juel1)129952] ; Pap, M. [P:(DE-Juel1)VDB14776] ; Steinbrech, R.W. [P:(DE-Juel1)VDB98094]