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- Hengst, S. (author), van der Heijden, E.W.P. (author), Dirkse, C. (author) other 1998
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- Jansen, C.M.A. (author), Hengst, S. (author) other 1998
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- van den Hoed, R. (author), Vergragt, J. (author), Hengst, S. (author) other 1997
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- Hengst, S. (author) other 1996
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- Hengst, S. (author), Leissner, D. (author) other 1995
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- Hengst, S. (author), Molenaar, W. (author) other 1995
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- Hengst, S. (author), Dirkse, C. (author) other 1995
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- Hengst, S. (author) other 1994
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- Hengst, S. (author) other 1994
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- Hengst, S. (author), Koeman, J. (author), van Roosma, C.I.M. (author) other 1991
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- Hengst, S. (author) other 1991
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- Bogaarts, J.A.G. (author), Hengst, S. (author) other 1991