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van Manen, Jan Dirk (author), Wereldsma, R. (author) report 1960
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van Manen, Jan Dirk (author) journal article 1960
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van Manen, Jan Dirk (author) report 1960
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van Manen, Jan Dirk (author) journal article 1959
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van Manen, Jan Dirk (author) journal article 1959
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van Manen, Jan Dirk (author) journal article 1959
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van Manen, Jan Dirk (author) conference paper 1959
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van Manen, Jan Dirk (author) journal article 1959
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van Manen, Jan Dirk (author) conference paper 1959
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van Manen, Jan Dirk (author) journal article 1959
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van Manen, Jan Dirk (author) journal article 1958
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van Manen, Jan Dirk (author) report 1958
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van Manen, Jan Dirk (author), Lap, A.J.W. (author) report 1958
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van Manen, Jan Dirk (author) journal article 1957
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van Manen, Jan Dirk (author) journal article 1957
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van Manen, Jan Dirk (author) conference paper 1956
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van Manen, Jan Dirk (author) journal article 1956
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van Manen, Jan Dirk (author) journal article 1956
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van Manen, Jan Dirk (author) report 1955
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van Manen, Jan Dirk (author), van Lammeren, W.P.A. (author) report 1955