Journal article (2006) - R Noomen (author), Ron Noomen (author), R. Noomen (author), G. Tavernier (author), PA Willis (author), H. Fagard (author), M. Feissel-Vernier (author), K. Bail le (author), F. Lemoine (author), C. Noll (author), J.C. Ries (author), L. Soudarin (author), J.J. Valette (author)