- document
- De Borst, R. (author), Sluys, L.J. (author), Muhlhaus, H.B. (author), Pamin, J. (author) journal article 1993
- document
- Sluys, L.J. (author), De Borst, R. (author), Muhlhaus, H.B. (author) journal article 1993
- document
- De Borst, R. (author), Sluys, L.J. (author) journal article 1991