Journal article (2007) - EJ Buis (author), H Beijers (author), A Owens (author), F Quarati (author), S Brandenburg (author), A.J.J. bos (author), C Dathy (author), P. Dorenbos (author), WA Drozdowski (author), S Kraft (author), E Maddox (author), RW Ostendorf (author)