- document
- Ganzinga, W. (author) master thesis 1991
- document
- de Beir, R. (author), Hengst, S. (author) other 1991
- document
- Beir, R.de (author) other 1991
- document
- Kik, A. (author) other 1990
- document
- report 1986
- document
- Centraalstaal B.V. (author) report 1986
- document
- Nederlands Maritiem Instituut (author) report 1980