Journal article (2000) - CW Struijk (author), Alexander B Sieval (author), J.M. Warman (author), JEJ Dakhorst (author), H Zuilhof (author), EJR Sudholter (author), RBM Koehorst (author), H Donker (author), TJ Schaafsma (author), S.J. Picken (author), AM van de Craats (author)