- document
- Kuur, P. van der (author), Postma, L. (author), Quist, A. (author), Rooij, N.M. de (author), Winterwerp, J.C. (author) report 1985
- document
- Winterwerp, J.C. (author) report 1980
- document
- Winterwerp, J.C. (author) report 1980
- document
- Winterwerp, J.C. (author) report 1979