- document
- Hengst, S. (author), Stijnen, P. (author), Kuijer, M.M.R. (author) lecture notes 1986
- document
- Hengst, S. (author), Vijn, J.F. (author), Stijnen, P. (author) lecture notes 1985
- document
- Hengst, S. (author), Doorduin, J.D. (author), Stijnen, O. (author) lecture notes 1985