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Laan, H. van der: Nieuwe Nederlandse Web-Woelers (1998)
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Voorbij, H.: ¬De ontwikkeling van het onderwerpsontsluitingssysteem t.b.v. de Nederlandse Bibliografie (1981)
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Lever, A.J.: BC veelzijdig instrument : gebruiksmogelijkheden van de Nederlandse Basisclassificatie (1994)
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Trier, G. v.: Informatieverzorging in de 21e eeuw : over boekenmusea en informatiesnelwegen (1995)
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Lever, A.J.: Nederlandse basisklassificatie gereed (1989)
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