- document
- Wijnberg, K.M. (author) report 2004
- document
- Icke, J (author) report 2001
- document
- Kessel, T. van (author), Aarninkhof, S.G.J. (author) report 2001
- document
- Aarninkhof, S.G.J. (author), Nipius, L. (author) report 2001
- document
- Asselman, N.E.M. (author) report 1999
- document
- Boderie, P.M.A. (author) report 1999
- document
- Maiwald, K.D. (author), Verhagen, J.H.G. (author), Buren, R. van (author) report 1991
- document
- Boer, K. den (author), Flokstra, C. (author) report 1979