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1
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2Article/Letter to editor bibliotecaWUR NL
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3Part of book or chapter of book bibliotecaWUR NL
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4Part of book or chapter of book bibliotecaWUR NL
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5Article/Letter to editor bibliotecaWUR NL
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6Other bibliotecaWUR NL
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7Article/Letter to editor bibliotecaWUR NL
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8Article in monograph or in proceedings bibliotecaWUR NL
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9Book (monograph) bibliotecaWUR NL