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Johansen, T.: Methods of subject-structure display (1990)
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Johansen, T.: ¬An outline of a non-linguistic approach to subject-relationships (1985)
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Johansen, T.: On the relationships of material subjects (1987)
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Johansen, T.: Elements of the non-linguistic approach to subject-relationships (1987)
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Ingwersen, P.: Cognitive analysis and the role of the intermediary in information retrieval (1986)
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Aghemo, A.: ¬Il reference librarian nel contesto multimediale (1998)
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Nicolaisen, J.: Compromised need and the label effect : an examination of claims and evidence (2009)
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Hastings, S.K.: Evaluation of image retrieval systems : role of user feedback (1999)
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Meadow, C.T.; Cerny, B.A.; Borgman, C.L.; Case, D.O.: Online access to knowledge : system design (1989)
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