Journal article (2005) - CL Lubbers (author), K. Booij (author), R Lemmens (author), Francois Clemens (author), F.H.L.R. Clemens (author), François Clemens (author), François H L R Clemens (author), F. H L R Clemens (author), Francois H.L.R. Clemens (author), François H.L.R. Clemens (author), F. H.L.R. Clemens (author)