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Voorbij, H.: Wetenschappelijke informatie zoeken op Internet : landelijk gebruikersoderzoek (1998)
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- Informatie professional. 2(1998) no.5, S.19-23
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Voorbij, H.: ¬Een goede titel behoeft geen trefwoord, of toch wel? : een vergelijkend oderzoek titelwoorden - trefwoorden (1997)
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- Informatie professional. 1(1997) no.11, S.23-27