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1Doctoral thesis bibliotecaWUR NL
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2External research report bibliotecaWUR NL
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3Patent bibliotecaWUR NL
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4Article/Letter to editor bibliotecaWUR NL
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5Article in monograph or in proceedings bibliotecaWUR NL
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6External research report bibliotecaWUR NL
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7External research report bibliotecaWUR NL
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8Book (monograph) bibliotecaWUR NL
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9External research report bibliotecaWUR NL