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- Daghigh, M. (author), Hengst, S. (author), Vrouwenvelder, A. (author), Boonstra, H. (author) other 1994
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- Hengst, S. (author), Stijnen, P. (author), Spaarman, R. (author) other 1988
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- Hengst, Sjoerd (author) journal article 1988
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- Hengst, S. (author), van der Vleuten, P.B.J. (author), Saurwalt, K.J. (author) lecture notes 1988
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- Groen, C.J. (author), van Lier-Lels, M.E. (author), Hengst, S. (author) master thesis 1984
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- de Pierre, Oele (author), Lambers, Hille Ris (author), Hengst, S. (author) master thesis 1984