Journal article (2008) - K. Maaijwee (author), T. Koolen (author), S Schutte (author), D. Rosenbrand (author), E Jacobs (author), S. Kleinheerenbrink (author), A. Knulst (author), J Bos (author), W.P. Holland (author), A Brouwer (author), J. C. van Meurs (author)