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van Manen, J.D. (author), van Terwisga, T. (author)
conference paper 2000
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van Manen, Jan Dirk (author)
conference paper 1966
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van Manen, Jan Dirk (author)
conference paper 1959
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van Manen, Jan Dirk (author)
conference paper 1959
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van Manen, Jan Dirk (author)
conference paper 1956
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