Book chapter (1998) - H Bultstra (author), J van Spijker (author)

Journal article (1996) - F Bijkerk (author), LA Shmaenol (author), T Zijlstra (author), E Louis (author), HJ Voorma (author), NB Koster (author), FA van Goor (author), J van Spijker (author), E.W.J.M. van der Drift (author), J Romijn (author), BAC Rousseeuw (author)