- document
- Brummelhuis, P.G.J. ten (author), Ouboter, M.R.L. (author) report 1994
- document
- Brummelhuis, P.G.J. ten (author), Gerritsen, H. (author), Verploegh, D. (author) report 1998
- document
- Brummelhuis, P.G.J. ten (author), Verlaan, M. (author) report 1999