- document
- Kuijpers, W. (author) report 1999
- document
- Gelling, J.L. (author) report 1999
- document
- Kuijpers, W. (author) report 1999
- document
- Vuyk Engineering Rotterdam B.V. (author) report 1999
- document
- Schuurman, J. (author) report 1999
- document
- Nautical Innovation Services (author) report 1985