Search results
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Gerritsma, J. (author), van den Bosch, J.J. (author), Beukelman, W. (author) journal article 1961
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Beukelman, Wim (author) journal article 1970
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Beukelman, Wim (author), Buitenhek, Maarten (author) journal article 1974
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Beukelman, Wim (author), Huijser, Art (author) journal article 1977
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Beukelman, Wim (author) journal article 1980
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Beukelman, W. (author), Gerritsma, J. (author) journal article 1982
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Beukelman, W. (author), Huijsmans, R.H.M. (author), Keuning, P.J. (author) journal article 1983
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Radev, D. (author), Beukelman, W. (author) journal article 1992
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Radev, Ditmar (author), Beukelman, Wim (author) journal article 1993
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Beukelman, Wim (author) journal article 1997
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Beukelman, Wim (author) journal article 1997
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Beukelman, Wim (author) journal article 1998