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Harter, S.P.: Online information retrieval : concepts, principles, and techniques (1986)
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Rowley, J.E.: Organising knowledge : An introduction to information retrieval (1987)
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Kemp, D.A.: Computer-based knowledge retrieval (1988)
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Rowley, J.E.; Farrow, J.: Organizing knowledge : an introduction to managing access to information (2000)
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