- document
- de Vries, J.L.T. (author) master thesis 1988
- document
- de Vries, J.L.T. (author) master thesis 1987
- document
- de Vries, M.T. (author) master thesis 1985
- document
- de Vries, Maarten H. (author) master thesis 1979
- document
- de Vries, Maarten H. (author) master thesis 1978