- document
- Staats, W. (author) master thesis 1971
- document
- Van den Brink, S.H. (author) master thesis 1971
- document
- van Ooij, N. (author) master thesis 1972
- document
- van Essen, R.M. (author) master thesis 1973
- document
- de Ridder, L.J. (author) master thesis 1974