- document
- Van Dieten, V.E.J. (author), Dekker, J.P. (author), Hurkmans, E.J. (author), Schoonman, J. (author) journal article 1993
- document
- Van Dieten, V.E.J. (author), Schoonman, J. (author) journal article 1992
- document
- Dekker, J.P. (author), Van Dieten, V.E.J. (author), Schoonman, J. (author) journal article 1992
- document
- Van Dieten, V.E.J. (author), Dekker, J.P. (author), Schoonman, J. (author) journal article 1992