- document
- Van de Graaf, A.A. (author), De Bruijn, P. (author), Robertson, L.A. (author), Jetten, M.S.M. (author), Kuenen, J.G. (author) journal article 1997
- document
- Jetten, M.S.M. (author), De Bruijn, P. (author), Kuenen, J.G. (author) journal article 1997
- document
- Van de Graaf, A.A. (author), De Bruijn, P. (author), Robertson, L.A. (author), Jetten, M.S.M. (author), Kuenen, J.G. (author) journal article 1996
- document
- De Bruijn, P. (author), Van de Graaf, A.A. (author), Jetten, M.S.M. (author), Robertson, L.A. (author), Kuenen, J.G. (author) journal article 1995
- document
- Van de Graaf, A.A. (author), Mulder, A. (author), De Bruijn, P. (author), Jetten, M.S.M. (author), Robertson, L.A. (author), Kuenen, J.G. (author) journal article 1995
- document
- Pronk, J.T. (author), De Bruijn, P. (author), Van Dijken, J.P. (author), Bos, P. (author), Kuenen, J.G. (author) journal article 1990