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  1. Riesthuis, G.J.A.; Stuurman, P.: Tendenzen in de onderwerpsontsluiting : T.4: Onderwerpsontsluiting en on-line catalogi (1990) 0.02 
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    Source
    Open. 22(1990) no.10, S.326-330
  2. Dijk, J.v.: Foundation, de basis voor een successvolle klantenbenadering : nieuw catalogusconcept op basis van wensprofielen (1995) 0.01 
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    Source
    Bibliotheek en samenleving. 23(1995) no.6, S.20-22
  3. Haanen, E.: Specificiteit en consistentie : een kwantitatief oderzoek naar trefwoordtoekenning door UBA en UBN (1991) 0.00 
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