Gonzalez, W. [P:(DE-Juel1)169616] ; Biel, W. [P:(DE-Juel1)129967] ; Mertens, Ph. [P:(DE-Juel1)4596] ; Tokar, M. [P:(DE-Juel1)5089] ; Marchuk, O. [P:(DE-Juel1)5739] ; Linsmeier, Ch. [P:(DE-Juel1)157640]