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Kinney, T.; Pasak, P.: ¬The 'naive subject searcher' model : a tool for evaluating library catalog user interfaces (1990)
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Xu, H.; Lancaster, F.W.: Redundancy and uniqueness of subject access points in online catalogs (1998)
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McClellan, D.: Subject access : what degree of sophistication? (1993)
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Pienaar, R.E.: Enhancement of subject access in online public access catalogues (OPACs) (1989)
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Vasiljev, A.: Online subject access to library holdings (1986)
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