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Thornley, C.: Dilemmas in information science (IS) and information retrieval (IR) : recurring challenges or new solutions? (2009)
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Harter, S.P.: Variations in relevance assessments and the measurement of retrieval effectiveness (1996)
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Hjoerland, B.: Arguments for philosophical realism in library and information science (2004)
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Skyrme, D.J.: Valuing information : is it worth it? (1998)
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Houston, R.D.; Harmon, E.G.: Re-envisioning the information concept : systematic definitions (2002)
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