- document
- Spiekman, L.H. (author), Oei, Y.S. (author), Metaal, E.G. (author), Green, F.H. (author), Moerman, I. (author), Smit, M.K. (author) journal article 1994
- document
- Soldano, L.B. (author), de Vreede, A.I. (author), Smit, M.K. (author), Verbeek, B.H. (author), Metaal, E.G. (author), Green, F.H. (author) journal article 1994