- document
- van der Harst, C.J. (author) master thesis 1988
- document
- van der Harst, C.J. (author) master thesis 1987
- document
- van der Harst, C.J. (author) master thesis 1987
- document
- van der Harst, C.J. (author) master thesis 1986
- document
- van der Harst, C.J. (author), Hengst, S. (author), Saurwalt, K.J. (author) master thesis 1984