Journal article (2005) - P Roepman (author), L.F.A. Wessels (author), Lodewyk Wessels (author), Lodewyk F.A. Wessels (author), Marcel Reinders (author), M. J.T. Reinders (author), Marcel J.T. Reinders (author), M.J.T. Reinders (author), PJ Slootweg (author), FCP Holstege (author), N Kettelarij (author), P Kemmeren (author), AJ Miles (author), P Lijnzaad (author), MGJ Tilanus (author), R Koole (author), GJ Hordijk (author), P van der Vliet (author)