Conference paper (2010) - Eelco Doornbos (author), E. N. Doornbos (author), E.N. Doornbos (author), M Forster (author), B Fritsche (author), T Helleputte van (author), J.A.A. van den IJssel (author), Pieter Visser (author), P.N.A.M. Visser (author)