- document
- de Jong, H. (author), Becqué, R.F. (author) report 1986
- document
- Becqué, R.F. (author), de Jong, H. (author) report 1985
- document
- de Jong, H. (author), Becqué, R.F. (author) report 1985
- document
- Rienks, A.J. (author), Becqué, R.F. (author) report 1978
- document
- Rienks, A.J. (author), Becqué, R.F. (author) report 1976
- document
- Becqué, R.F. (author), Strating, J. (author) report 1975