Conference paper (2004) - L Gora (author), AW van den Berg (author), W Zhu (author), W Zhu (author), J.C. Jansen (author), JC Jansen (author), F Kapteijn (author), Freek Kapteijn (author), F. Kapteijn (author), T Maschmeyer (author), T Maschmeyer (author)