- document
- Hengst, S. (author), Dirkse, C. (author), van der Cammen, J.J. (author) other 1998
- document
- Ministerie van Verkeer & Waterstaat (author) report 1993
- document
- Innovatie Centrum Zuid-Holland-Zuid (author) report 1992
- document
- Permanent international association of navigation (author) report 1988
- document
- Krietemeijer, J.H. (author) other 1976
- document
- report 1975