- document
- Wang, Z.B. (author), Thoolen, P.M.C. (author), Tanczos, I.C. (author) report 2002
- document
- Thoolen, P.M.C. (author) report 2000
- document
- Thoolen, P.M.C. (author), Wang, Z.B. (author) report 1999
- document
- Thoolen, P.M.C. (author), Wang, Z.B. (author) report 1999
- document
- Wang, Z.B. (author), Thoolen, P.M.C. (author), Fokkink, R.J. (author) report 1997