Journal article (2006) - RP Kollaard (author), WJF Dries (author), HJ van Kleffens (author), T.H. Aalbers (author), J van der Marel (author), H.P. Marijnissen (author), M Piessens (author), DR Schaart (author), Dennis Schaart (author), Dennis R. Schaart (author), H de Vroome (author)