- document
- van Beek, T. (author) lecture notes 2008
- document
- van Beek, T. (author), van Terwisga, T.J.C. (author) conference paper 2006
- document
- van Beek, T. (author) journal article 2005
- document
- van Beek, T. (author), Janssen, A. (author) conference paper 2000
- document
- van Beek, T. (author) conference paper 1995
- document
- van Beek, T. (author) master thesis 1980